Radius model of convex vertical curve of freeway based on attachment coefficient
光学术语中英文对照
平面镜 Flat Mirrors球面凹面镜，球面凸面镜 Spherical Concave and Convex Mirrors 抛物面镜，椭圆面镜 Off-Axis Paraboloids and Ellipsoids Mirrors 非球面镜 Aspheric Mirrors多面镜 Polygonal Mirrors热镜 Hot Mirrors冷镜 Cold Mirrors玻璃，玻璃/陶瓷面镜 Glass and Glass-Ceramic Mirrors双色向面镜 Dichroic Mirror金属面镜 Metal Mirrors多层面镜 Multilayer Mirrors半涂银面镜 Half-Silvered Mirrors激光面镜 Laser Mirrors天文用面镜 Astronomical Mirrors棱镜系列术语中英文对照Nicol棱镜 Nicol PrismsGlan-Thomson棱镜 Glan-Thomson PrismsWollaston棱镜 Wollaston PrismsRochon棱镜 Rochon Prisms直角棱镜 Right-Angle; Rectangular Prisms五面棱镜 Pentagonal Prisms脊角棱镜 Roof Prisms双棱镜 Biprisms直视棱镜 Direct Vision Prisms微小棱镜 Micro Prisms滤光镜系列术语中英文对照尖锐滤光镜 Sharp Cut (off) Filters色温变换滤光镜，日光滤光镜 Colour Conversion/Daylight Filters 干涉滤光镜 Interference Filters中性密度滤光镜 Neutral Density Filters空间/光学匹配滤光镜 Spatial/Optical Matched Filters双色向滤光镜 Dichroic Filters偏光滤光镜 Polarizing Filters排除频带滤光镜 Rejection Band Filters可调式滤光镜 Turnable Filter超窄频滤光镜 Ultra Narrowband Filters色吸收滤光镜 Absorption Filters红外吸收/反射滤光镜 Infrared Absorbing/Reflecting Filters 红外透过滤光镜 Infrared Transmitting Filters紫外吸收滤光镜 Ultraviolet Absorbing Filters紫外透过滤光镜 Ultraviolet Transmitting Filters针孔滤光镜 Pinhole Filters有色玻璃滤光镜 Colored-Glass Filters塑胶滤光镜 Plastic Filters照像用滤光镜 Photographic Filters全像滤光镜 Holographic Filters微小干涉滤光镜 Micro Interference Filters光学词汇Iris – aperture stop虹膜孔径光珊retina视网膜Color Blind 色盲weak color 色弱Myopia – near-sighted 近视Sensitivity to Light感光灵敏度boost推进lag behind落后于Hyperopic – far-sighted 远视Dynamic Range 动态范围critical fusion frequency 临界融合频率CFF临界闪变频率visual sensation视觉Chromaticity Diagram色度图Color Temperature色温HSV Model色彩模型(hue色度saturation饱和度 value纯度CIE Model 相干红外能量模式Complementary Colors补色Bar Pattern条状图形Heat body 热稠化approximate近似violet紫罗兰Body Curve人体曲线Color Gamut色阶adjacent邻近的normal illumination法线照明Primary colors红黄蓝三原色Color saturation色饱和度Color Triangle颜色三角Color Notation颜色数标法Color Difference色差TV Signal Processing电视信号处理Gamma Correction图像灰度校正Conversion Tables换算表out of balance失衡wobble摇晃back and forth前后clear (white) panel白光板vibrant震动fuzzy失真quantum leap量子越迁SVGA (800x600)derive from起源自culprit犯人render呈递inhibit抑制,约束stride大幅前进blemish污点obstruction障碍物scratch刮伤substance物质实质主旨residue杂质criteria标准parameter参数adjacent邻近的接近的asynchrony异步cluster串群mutually互助得algorithm运算法则Chromatic Aberrations色差Fovea小凹Visual Acuity视觉灵敏度Contrast Sensitivity对比灵敏度Temporal (time) Response反应时间rendition表演,翻译animation活泼又生气ghost重影Parallax视差deficient缺乏的不足的Display panel显示板NG.( Narrow Gauge)窄轨距dichroic mirror二色性的双色性的Brewster Angle布鲁斯特角Polarized Light极化光Internal reflection内反射Birefringence 双折射Extinction Ratio 消光系数Misalignment 未对准Quarter Waveplates四分之一波片blemish污点瑕疵Geometric几何学的ripple波纹capacitor电容器parallel平行的他tantalum钽(金属元素)exsiccate使干燥exsiccate油管,软膏furnace炉子镕炉electrolytic电解的,由电解产生的module模数analog类似物out of the way不恰当pincushion针垫拉lateral侧面得rectangle长方形fixture固定设备control kit工具箱DVI connector DVI数局线Vertical垂直的horizontal 水平的interlace隔行扫描mullion竖框直楞sawtooth锯齿toggle套索钉keypad数字按键键盘tangential切线diagnostic tool诊断工具sagittal direction径向的cursor position光标位置ray aberration光线相差weighting factor权种因子variables变量for now暂时,目前.眼下check box复选框Airy disk艾里斑exit pupil出[射光]瞳optical path difference光称差with respect to关于diffraction limited衍射极限wavefront aberration波阵面相差spherical aberration球面象差paraxial focus傍轴焦点chromatic aberration象差local coordinate system局部坐标系统coordinate system坐标系orthogonal直角得,正交的conic sections圆锥截面account for解决,得分parabolic reflector拋物面反射镜radius of curvature曲率半径spherical mirror球面镜geometrical aberration几何相差incident radiation入射辐射global coordinate总体坐标in terms of根据按照reflected beam反射束FYI=for your information供参考Constructive interference相长干涉phase difference相差achromatic singlet消色差透镜Interferometer干涉仪boundary constraint边界约束,池壁效应radii半径Zoom lenses变焦透镜Beam splitters分束器discrete不连续的,分离的objective/eye lens物镜/目镜mainframe主机rudimentary根本的,未发展的photographic照相得摄影得taxing繁重的,费力得algebra代数学trigonometry三角学geometry几何学calculus微积分学philosophy哲学lagrange invariant拉格朗日不变量spherical球的field information场信息Standard Lens标准透镜Refracting Surface折射面astigmatism散光HDTV高清晰度电视DLV ( Digital Light Valve)数码光路真空管，简称数字光阀diffraction grating衍射光珊field angle张角paraxial ray trace equations近轴光线轨迹方称back focal length后焦距principal plane主平面vertex顶点,最高点astigmatism散光,因偏差而造成的曲解或错判medial中间的,平均的variance不一致conic圆锥的,二次曲线field of view视野collimator瞄准仪convolution回旋.盘旋,卷积fuzzy失真,模糊aberrated异常的asymmetry不对称得indicative可表示得parabolic拋物线得suffice足够,使满足specification规格,说明书straightforward易懂的,直接了当的solidify凝固,巩固.Constraints 约束,限制metrology度量衡field coverage视场,视野dictate口述, 口授, 使听写, 指令, 指示, 命令, 规定irradiance发光, 光辉,辐照度aerial空气得,空中得halide卤化物的monochromatic单色的,单频的polychromatic多色的aspherical非球面的spherical球面的alignment列队,结盟power(透镜)放大率equiconvergence 同等收敛EFL(effective focal length)有效焦距workhorse广为应用的设备biconvex两面凸的global optimization整体最优化concave凹得,凹面得cylindrical圆柱得solid model实体模型Modulation Transfer Function调制传递函数in the heat of在最激烈的时候protocol协议,规定triplet三重态sanity心智健全zinc锌,涂锌的selenide 硒化物,硒醚miscellaneous各色各样混在一起, 混杂的, 多才多艺的versus与...相对polynomial多项式的coefficient系数explicit function显函数distinct清楚的,截然不同的emanate散发, 发出, 发源rudimentary根本的,未发展的intersection角差点PRTE=paraxial ray trace equation旁轴光线轨迹方程 achromats 消色差透镜cardinal points基本方位separations分色片dashed 虚线blow up放大overlay覆盖,覆盖图 multiplayer 多层的humidity 湿度float glass浮法玻璃square one 出发点,端点square up to 准备开打,坚决地面对reflecting telescope 反射式望远镜 diagnostic tools诊断工具Layout plots规划图Modulation transfer function调制转换功能FFT快速傅里叶变换Point spread function点传播功能wavelength波长angle角度absorption吸收system aperture系统孔径lens units透镜单位wavelength range 波长范围singlet lens单业透镜spectrum光谱diffraction grating 衍射光栅asphere半球的LDE=Lens data editor Surface radius of curvature表面曲率半径surface thickness表面厚度material type 材料种类semi-diameter半径focal length焦距aperture type孔径类型aperture value孔径值field of view视场microns微米F, d, and C= blue hydrogen, yellow helium, red hydrogen lines, primary wavelength主波长sequential mode连续模式object surface物表面The front surface of the lens透镜的前表面stop 光阑The back surface of the lens透镜的后表面The image surface 像表面symmetric相对称的biconvex两面凸的The curvature is positive if the center of curvature of the surface is to the right of the vertex. It is negative if the center of curvature is to the left of the vertex.如果曲率中心在最高点的右边,曲率值为正,如果曲率中心在最高点的左边,则曲率为负image plane像平面Ray Aberration光线相差tangential direction切线方向sagittal direction径向paraxial focus旁轴的Marginal边缘的spherical aberration球面像差Optimization Setup最优化调整variable变量mathematical sense数学角度MFE= Merit Function Editor, Adding constraints增加约束focal length焦矩长度operand操作数the effective focal length有效焦矩primary wavelength主波长initiate开始spot diagram位图表Airy disk艾里斑axial chromatic aberration轴向色差with respect to关于至于exit pupil出射光瞳OPD=optical path difference光学路径差diffraction limited衍射极限chromatic aberration色差chromatic focal shift色焦距变换paraxial focus傍轴焦点axial spherical aberration轴向球差(longitudinal spherical aberration 纵向球差:沿光轴方向度量的球差)lateral spherical aberration垂轴球差(在过近轴光线像点A‵的垂轴平面内度量的球差)coma、comatic aberration彗差meridional coma子午彗差sagittal coma弧矢彗差astigmatism像散local coordinate system 本地坐标系统meridional curvature of field子午场曲sagittal curvature of field弧矢场曲decentered lens偏轴透镜orthogonal 直角的垂直的conic section圆锥截面account for说明,占有,得分stigmatic optical system无散光的光学系统Newtonian telescope牛顿望远镜parabolic reflector抛物面镜foci焦距chromatic aberration,色差superpose重迭parabola抛物线spherical mirror球面镜RMS=Root Mean Square均方根wavefront 波阵面spot size光点直径Gaussian quadrature高斯积分rectangular array矩阵列grid size磨粒度PSF=Point Spread Function点扩散函数FFT=Fast Fourier Transform Algorithm快速傅里叶变换Cross Section横截面Obscurations昏暗local coordinates局部坐标系统vignette把…印为虚光照Arrow key键盘上的箭头键refractive折射reflective反射in phase同相的协调的Ray tracing光线追迹diffraction principles衍射原理order effect式样提出的顺序效果energy distribution能量分配Constructive interference相长干涉dispersive色散的Binary optics二元光学phase advance相位提前achromatic single消色差单透镜diffractive parameter衍射参数Zoom lenses变焦透镜Athermalized lenses绝热透镜Interferometers干涉计Beam splitter分束器Switchable component systems可开关组件系统common application通用symmetry对称boundary constraint边界约束multi-configuration (MC) MC Editor (MCE) perturbation动乱,动摇index accuracy折射率准确性index homogeneity折射率同种性index distribution折射率分配abbe number离差数Residual 剩余的Establishing tolerances建立容差figure of merit质量因子tolerance criteria公差标准Modulation Transfer Function (MTF)调制传递函数boresight视轴，瞄准线Monte Carlo蒙特卡洛Tolerance operands误差操作数conic constant ]MC1"{_qT .ueg g 圆锥常数astigmatic aberration像散误差Mechanical tilt机械倾斜，机械倾角Tolerance Data Editor (TDE)公差资料编辑器compensator补偿棱镜estimated system performance预估了的系统性能iteratively反复的，重迭的statistical dependence统计相关性sequential ray trace model连续光线追迹模型imbed埋葬，埋入multiple多样的，多重的，若干的Non-Sequential Components 不连续的组件Corner cube角隅棱镜，三面直角透镜Sensitivity Analysis灵敏度分析Faceted reflector有小面的反射镜emit发射，发出nest嵌套overlap交迭outer lens外透镜brute force强力seidel像差系数aspect ratio长宽比MRA边缘光线角MRH边缘光线高度asynchronous不同时的,异步 Apodization factor变迹因子hexapolar六角形dithered高频脉冲衍射调制传递函数（DMTF），衍射实部传递函数（DRTF），衍射虚部传递函数（DITF），衍射相位传递函数（DPTF），方波传递函数（DSWM）logarithmic对数的parity 奇偶 % Uc,I e ,17]3NnoClongitudinal aberrations 纵向像差赛得系数: 球差（SPHA，SI），彗差（COMA，S2），像散（ASTI，S3），场曲（FCUR，S4），畸变（DIST，S5），轴向色差（CLA，CL）和横向色差（CTR，CT）.横向像差系数:横向球差（TSPH），横向弧矢彗差（TSCO），横向子午彗差（TTCO），横向弧矢场曲（TSFC），横向子午场曲（TTFC），横向畸变（TDIS）横向轴上色差（TLAC）。
竖曲线讲解
竖曲线讲解Vertical Curve ExplanationA vertical curve is a geometric design element used in road and highway engineering to provide a smooth transition between two different grades or elevations. It ensures a comfortable and safe driving experience by gradually changing the slope of the road, reducing the impact on vehicles and passengers.竖曲线是道路和公路工程中使用的几何设计元素，用于在两个不同的坡度或高程之间提供平滑过渡。
它通过逐渐改变道路的坡度，确保舒适和安全的驾驶体验，减少对车辆和乘客的冲击。
There are two types of vertical curves: sag curves and crest curves. Sag curves are concave downward, resembling the shape of a valley, and are used when the road descends from a higher elevation to a lower one. On the other hand, crest curves are convex upward, resembling the shape of a hill, and are employed when the road ascends from a lower elevation to a higher one.竖曲线分为两种类型：凹曲线和凸曲线。
凹曲线向下凹，形似山谷，用于道路从较高高程降至较低高程的情况。
焊接专业英语2汇总
熔接fusion welding压接pressure welding焊接过程welding process焊接技术welding technique焊接工艺welding technology/procedure焊接操作welding operation焊接顺序welding sequence焊接方向direction of welding焊接位置welding position熔敷顺序build-up sequence/deposition sequence焊缝倾角weld slope/inclination of weld axis焊缝转角weld rotation/angle of rotation平焊位置flat position of welding横焊位置horizontal position of welding立焊位置vertical position of welding仰焊位置overhead position of welding平焊downhand welding/flat position welding横焊horizontal position welding立焊vertical position welding仰焊overhead position welding全位置焊all position welding：熔焊时，焊件接逢所处空间位置包括平焊、横焊、仰焊等位置所进行的焊接。
如水平固定管所进行的环缝焊接向下立焊vertical down welding/downward welding in t he vertical position向上立焊vertical up welding/upward welding in the ve rtical position倾斜焊inclined position welding上坡焊upward welding in the inclined position下坡焊downward welding in the inclined position对接焊butt welding角焊fillet welding搭接焊lap welding船形焊fillet welding in the downhand position/fillet w elding in the flat position平角焊horizontal fillet welding立角焊fillet welding in the vertical position仰角焊fillet welding in the overhead position坡口焊groove weldingI形坡口对接焊square butt welding喇叭形坡口焊flare groove welding卷边焊flanged edge welding纵缝焊接welding of longitudinal seam横缝焊接welding of transverse seam环缝焊接girth welding/ circumferential螺旋缝焊接welding of spiral seam/welding of helical s eam环缝对接焊butt welding of circumferential seam定位焊tack welding单面焊welding by one side双面焊welding by both sides单道焊single pass welding/single run welding多道焊multi-pass welding单层焊single layer welding多层焊multi-layer welding分段多层焊block sequence/ block welding分层多道焊multi-layer and multi-pass welding连续焊continuous welding断续焊intermittent welding打底焊backing weld封底焊back sealing weld盖面焊cosmetic welding深熔焊deep penetration welding摆动焊welding with weaving/weave bead welding前倾焊foreward welding (英国)/ forehand welding (美国)后倾焊backward welding(英国)/ backhand welding(美国)分段退焊backstep welding跳焊skip welding对称焊balanced welding/ balanced welding sequence 左焊法leftward welding forehand welding右焊法rightward welding/backhand welding挑弧焊whipping method自动焊automatic welding手工焊manual welding/hand welding车间焊接shop welding工地焊接site welding(英国)/ field welding (美国)拘束焊接restraint welding堆焊surfacing/building up/overlaying隔离层堆焊buttering端部周边焊boxing/end return返修焊rewelding补焊repair welding塞焊plug welding槽焊slot welding衬垫焊welding with backing焊剂垫焊welding with flux backing窄间隙焊narrow-gap welding强制成形焊enclosed welding脉冲电弧焊pulsed are welding电弧点焊arc spot welding螺柱焊stud welding热风焊hot gas welding高能焊high grade energy welding固态焊接solid-state welding单面焊双面成形one-side welding with back formation 焊接条件welding condition焊接工艺参数welding parameter极性polarity正接electrode negative/straight polarity反接electrode positive/reversed polarity运条方式manipulation of electrode焊接电流welding current焊接电流增加时间welding current upslope time焊接电流衰减时间welding current downslope time电流密度current density短路电流short circuit current脉冲电流pulse level/pulse current level脉冲电流幅值pulse current amplitude基值电流background level脉冲频率pulse frequency脉冲焊接电流占空比duty cycle of pulse duration电弧电压arc voltage再引弧电压reignition voltage焊接速度welding speed行走速度rate of travel/travel speed送丝速度wire feed rate线能量heat input/energy input热输入heat input预热preheat后热postheat焊后热处理posweld heat treatment/postheat treatmen t预热温度preheat temperature层间温度interpass temperature焊接终了温度finishing temperature后热温度postheating temperature焊丝伸出长度wire extension弧长arc length熔化速度melting rate熔化时间melting time熔化系数melting coefficient熔敷速度rate of deposition/deposition rate熔敷系数deposition coefficient熔敷效率deposition efficiency损失系数loss coefficient飞spatter飞溅率spatter loss coefficient融合比fusion ratio稀释dilution稀释率rate of dilution合金过度系数transfer efficiency/recovery (of an eleme nt)坡口groove坡口面groove face坡口面角度angle of bevel (英国)/ bevel angle (美国) 坡口角度included angle(英国)/groove angle(美国)坡口高度groove depth钝边root face钝边高度thickness of root face/width of root face根部间隙root gap(英国)/root opening (美国)根部半径root radius/groove radius根部锐边root edge卷边高度height of flange卷边半径radius of flange单面坡口single groove双面坡口double groove坡口形式groove typeI形坡口square grooveV形坡口single V grooveY形坡口single V groove with root face双Y形坡口double Vgroove with root face带钝边U形坡口single U groove带钝边双U形坡口double U grooveVY形坡口single compound angle groove带钝边J形坡口single J groove带钝边双J形坡口double J groove单边V形坡口single bevel groove双V形坡口double V groove不对称双V形坡口asymmetric double V groove双单边V形坡口double bevel groove/K groove带垫板V形坡口V groove with backing/ single V groov e with backing喇叭形坡口flare groove锁底坡口single bevel groove with backing locked坡形板边tapered edge焊缝weld接逢seam焊缝符号welding symbol焊缝金属weld metal填充金属filler metal熔敷金属deposited metal焊缝表面weld face/ face of weld焊缝背面back of weld焊缝轴线axis of weld焊缝尺寸size of weld焊缝宽度weld width/ width of weld焊缝长度weld length/ length of weld焊缝有效长度effective length of weld焊缝厚度throat depth/ throat thickness 焊缝计算厚度theoretical throat焊缝实际厚度actual throat熔深penetration/ depth of penetration 焊缝成形appearance of weld焊缝成形系数form factor of weld余高reinforcement/ excess weld metal 背面余高root reinforcement削平焊缝flush weld/ weld machined flush对接焊缝butt weld角焊缝fillet焊脚leg/ fillet weld leg角焊缝断面形状profile of fillet weld平形角焊缝flat fillet凸形角焊缝convex fillet weld凹形角焊缝concave fillet weld角焊缝凹度concavity侧面角焊缝side fillet weld/ fillet weld in parallel shear 正面角焊缝front fillet weld/ fillet weld in normal shear 立角焊缝fillet weld in the vertical position横角焊缝fillet weld in the horizontal position平角焊缝fillet weld in the flat position斜角焊缝oblique fillet weld连续焊缝continuous weld断续焊缝intermittent weld连续角焊缝continuous fillet weld断续角焊缝intermittent fillet weld交错断续角焊缝staggered intermittent fillet weld并列断续角焊缝chain intermittent fillet weld端接焊缝edge weld卷边焊缝flanged edge weld塞焊焊缝plug weld纵向焊缝longitudinal weld横向焊缝transverse weld环行焊缝girth weld/ circumferential weld螺旋形焊缝spiral weld/ helical weld密封焊缝seal weld承载焊缝strength weld联系焊缝connective weld定位焊缝tack weld焊道bead/ run/ pass焊波ripple焊根weld root/ root of weld焊趾weld toe/ toe封底焊道sealing run (after making main weld)/ back weld打底焊道backing weld (before making main weld)/ ba ck weld根部焊道root pass/ root run填充焊道filling bead盖面焊道cosmetic bead/ cover pass回火焊道temper bead/ annealing bead熔透焊道penetration bead焊层layer焊接接头welded joint接头形状joint geometry等强匹配接头equalmatching weld joint低强匹配接头undermatching weld joint超强匹配接头overmatching weld joint接头根部root of joint对接接头butt jointI形对接接头square butt jointV形对接接头single V butt jointU形对接接头single U butt jointJ形坡口接头single J butt joint双V形对接接头double V butt joint双单边V形对接接头double bevel butt joint/ K groove butt joint带钝边U形对接接头double U butt joint带钝边J形坡口接头double J joint角接接头corner jointT形接头T joint斜T形接头inclined T joint十字接头cruciform joint/ cross-shaped joint三联接头joint among three members 搭接接头lap joint套管接头muff joint/ sleeve joint双盖板接头double strapped joint盖板接头strapped joint端接接头edge joint卷边接头flanged edge joint锁底对接接头lock butt joint斜对接接头oblique butt joint混合接头mixed joint/ composite joint 有间隙接头open joint无间隙接头closed joint焊接电弧welding arc电弧形态arc shape电弧物理行为arc physics behaviour引弧striking arc引弧电压striking voltage电弧气氛arc atmosphere阴极cathode热阴极hot cathode冷阴极cold cathode阴极斑点cathode spot阴极区cathode region阴极区电场强度intensity of the electric field in the cat hode region阴极压降cathode drop阳极anode阳极斑点anode spot斑点压力spot pressure阳极区anode region阳极压降anode drop弧柱arc column/ arc stream弧柱压降voltage drop in arc column弧柱电位梯度potential gradient in the arc column弧焰arc flame弧心arc core硬电弧forceful arc/ hard arc软电弧soft arc旋转电弧rotating arc脉冲电弧pulsed arc脉冲喷射电弧pulsed spray arc起皱现象puckering phenomena起皱电弧puckering arc起皱临界电流puckering critical current间接电弧indirect arc压缩电弧compressive arc磁控电弧magnetic controlling arc电弧力arc force电磁力electromagnectic force电磁收缩效应pinch effect电弧飘移wandering of arc电弧稳定性arc stability电弧静特性static characteristic of arc电弧动特性dynamic characteristic of arc最小电压原理principle of minimum voltage 电弧挺度arc stiffness电弧偏吹arc blow磁偏吹magnetic blow阴极清理作用cleaning action of the cathode 电弧自身调节arc self-regulation挖掘作用digging action极性效应polarity effect熔滴droplet熔滴比表面积specific surface of droplet熔滴过渡metal transfer过度频率transition frequency粗滴过渡globular transfer; drop transfer 短路过渡short circuiting transfer喷射过渡spray transfer旋转喷射过渡rotating spray transfer脉冲喷射过渡pulsed spray transfer爆炸过渡explosive transfer渣壁过渡flux wall guided transfer熔池molten pool沸腾状熔池boiling molten pool弧坑crater熔渣slag渣系slag system渣系相图slag system diagram碱性渣basic slag酸性渣acid slag碱度basicity酸度acidity长渣long slag短渣short slag粘性熔渣viscous slag氧化物型熔渣oxide melting slag盐型熔渣salt melting slag盐-氧化物型熔渣salt-oxide melting slag熔渣流动性fluidity of the slag; slag fluidity熔渣solidified slag多孔焊渣porous slag玻璃状焊渣vitreous slag自动脱落焊渣self-releasing slag脱渣性slag detachability焊接设备welding equipment; welding set焊机welding machine; welder电焊机electric welding machine; electric welder焊接电源welding power source焊接热循环weld thermal cycle焊接温度场field of weld temperature; weld temperatu re field准稳定温度场quasi-stationary temperature field焊接热源welding heat source点热源point heat source线热源linear heat source面热源plane heat source瞬时集中热源instantaneous concentration heat source 热效率thermal efficiency热能集中系数coefficient of heat flow concentration峰值温度peak temperature瞬时冷却速度momentary cooling rate冷却时间cooling time置换氧化substitutionary oxydation扩散氧化diffusible oxydation脱氧desoxydation先期脱氧precedent desoxydation扩散脱氧diffusible desoxydation沉淀脱氧precipitation desoxydation扩散氢diffusible hydrogen初始扩散氢initial diffusible hydrogen100℃残余扩散氢diffusible hydrogen remained at 10 0℃残余氢residual hydrogen去氢dehydrogenation去氢热处理heat treatment for dehydrogenation脱硫desulphurization脱磷dephosphorization渗合金alloying微量合金化microalloying一次结晶组织primary solidification structure二次结晶组织secondary solidification structure联生结晶epitaxial solidification焊缝结晶形态solidification mode in weld-bead结晶层状线ripple多边化边界polygonization boundary结晶平均线速度mean solidification rate针状铁素体acicular ferrite条状铁素体lath ferrite侧板条铁素体ferrite side-plate晶界欣素体grain boundary ferrite; polygonal ferrite; pro-entectoid ferrite粒状贝氏体granular bainite板条马氏体lath martensite过热组织overheated structure魏氏组织Widmannst?tten structureM-A组元martensite-austenite constituent焊件失效分析failure analysis of weldments冷裂判据criterion of cold cracking冷裂敏感系数cold cracking susceptibity coefficient脆性温度区间brittle temperature range氢脆hydrogen embrittlement层状偏析lamellar segregation愈合healing effect断口金相fractography断口fracture延性断口ductile fracture韧窝断口dimple fracture脆性断口brittle fracture解理断口cleavage fracture准解理断口quasi-cleavage fracture氢致准解理断口hydrogen-embrittlement induced 沿晶断口intergranular fracture穿晶断口transgranular fracture疲劳断口fatigue fracture滑移面断口glide plane fracture断口形貌fracture apperance断口试验fracture test宏观断口分析macrofractography放射区radical zone纤维区fibrous zone剪切唇区shear lip aone焊接性weldability使用焊接性service weldability工艺焊接性fabrication weldability冶金焊接性metallurgical weldability热焊接性thermal weldability母材base metal; parent metal焊接区weld zone焊态as-welded (AW)母材熔化区fusion zone半熔化区partial melting region未混合区unmixed zone熔合区bond area熔合线weld junction (英)；bond line (美)热影响区heat-affected zone (HAZ)过热区overheated zone粗晶区coarse grained region细晶区fine grained region过渡区transition zone硬化区hardened zone碳当量carbon equivalent铬当量chromium equivalent镍当量nickel equivalent舍夫勒组织图Schaeffler's diagram德龙组织图Delong’s diagram连续冷却转变图（CCT图）continuous cooling transforma tion裂纹敏感性cracking sensibility焊接裂纹weld crack焊缝裂纹weld metal crack焊道裂纹bead crack弧坑裂纹crater crack热影响区裂纹heat-affected zone crack 纵向裂纹longitudinal crack横向裂纹transverse crack微裂纹micro-crack; micro-fissure热裂纹hot crack凝固裂纹solidification crack晶间裂纹intercrystalline crack穿晶裂纹transcrystalline crack多边化裂纹polygonization crack液化裂纹liquation crack失延裂纹ductility-dip crack冷裂纹cold crack延迟裂纹delayed crack氢致裂纹hydrogen-induced crack焊道下裂纹underbead crack焊根裂纹root crack焊趾裂纹toe crack锯齿形裂纹chevron cracking消除应力处理裂纹stress relief annealing crack (SR cra ck)再热裂纹reheat crack焊缝晶间腐蚀weld intercryctalline corrosion刀状腐蚀knife line attack敏化区腐蚀weld decay层状撕裂lamellar tearing焊接性试验weldability裂纹试验cracking testIIW裂纹试验IIW cracking testY形坡口裂纹试验slit type cracking test分块形槽热裂纹试验segmented circular groove crackin g testH形裂纹试验H-type cracking test鱼骨形裂纹试验fishbone cracking test指形裂纹试验finger (cracking) testT形裂纹试验Tee type cracking test环形槽裂纹试验circular-groove cracking test可调拘束裂纹试验varestraint testBWRA奥氏体钢裂纹试验BWRA cracking test for austen itie steel圆棒裂纹试验bar type cracking test; round bar cracki ng test里海裂纹试验Lehigh restraint cracking test圆形镶块裂纹试验circular-path cracking test十字接头裂纹试验cruciform cracking testZ向窗口拘束裂纹试验Z-direction window type restraint cracking testG-BOP焊缝金属裂纹试验G-BOP weld metal crack test 巴特尔焊道下裂纹试验Battelle type underbead cracking testU形拉伸试验U-tension test缪雷克期热裂纹试验Murex hot cracking test菲斯柯裂纹试验FISCO (type) cracking testCTS裂纹试验controlled thermal severity拉伸拘束裂纹试验（TRC试验）tensile restraint cracking t est刚性拘束裂纹试验（RRC试验）rigid restraint cracking te st插销试验implant testTigamajig 薄板焊接裂纹试验Tigamajing thin plate crac king test焊道纵向弯曲试验longitudinal-bead test柯麦雷尔弯曲试验Kommerell bead bend test肯泽尔弯曲试验Kinzel test缺口弯曲试验notch bend test热朔性试验hot-ductility test热影响区冲击试验impact test of HAZ热影响区模拟试验synthetic heat-affected zone test 最高硬度试验maximum hardness test落锤试验NRL (Naval Research Laboratory)测氢试验Hydrogen test焊接材料电极焊接材料welding consumables电极electrode熔化电极consumable electrode不熔化电极nonconsumable electrode钨电极tungsten electrode焊丝welding wire. Welding rod实心焊丝solid wire渡铜焊丝copper-plating welding wire自保护焊丝self-shielded welding wire药芯焊丝flux-cored wire复合焊丝combined wire堆焊焊丝surfacing welding rod填充焊丝filler wire焊条electrode/ covered electrode焊芯core wire药皮coating (of an electrode)/ covering (of an electr ode)涂料coating flux/coating material造气剂gas forming constituents造渣剂slag forming constituents合金剂alloying constituent脱氧剂dioxidizer稳弧剂arc stabilizer粘接剂binder水玻璃water glass水玻璃模数modules of water glass酸性焊条acid electrode高钛型焊条high titania (type) electrode钛钙型焊条lime titania type electrode钛铁矿形焊条ilmenite type electrode氧化铁型焊条iron oxide type electrode/ high iron oxid e type electrode高纤维素型焊条high cellulose (type) electrode石墨型焊条graphite type electrode碱性焊条basic electrode/ lime type covered electrode 低氢型焊条low hydrogen type electrode高韧性超低氢焊条high toughness super low hydrogen electrode奥氏体焊条austenitic electrode铁素体焊条ferritic electrode不锈钢焊条stainless steel electrode珠光体耐热钢焊条pearlitic heat resistant steel electrod e低温钢焊条low temperature steel electrode/ steel elec trode for low temperature铜合金焊条copper-alloy arc welding electrode铜芯铸铁焊条cast iron electrode with steel core纯镍铸铁焊条pure nickel cast iron electrode球墨铸铁焊条electrode for welding spheroidal graphite cast iron铸芯焊条electrode with cast core wire镍基合金焊条nickel base alloy covered electrode蒙乃尔焊条Monel electrode纯铁焊条pure iron electrode渗铝钢焊条alumetized steel electrode高效率焊条high efficiency electrode铁粉焊条iron powder electrode底层焊条backing welding electrode深熔焊条deep penetration electrode重力焊条gravity electrode立向下焊条electrode for vertical down position weldin g节能焊条saving energy electrode水下焊条underwater welding electrode耐海水腐蚀焊条seawater corrosion resistant steel elect rode低尘低毒焊条low-fume and harmfulless electrode/ low-fume and low-toxic electrode堆焊焊条surfacing electrode耐磨堆焊焊条hardfacing electrode钴基合金堆焊焊条cobalt base alloy surfacing electrode 碳化钨堆焊焊条tungsten carbide surfacing electrode高锰钢堆焊焊条high manganese steel surfacing electro de双芯焊条twin electrode绞合焊条stranded electrode编织焊条braided electrode双层药皮焊条double coated electrode管状焊条flux-cored electrode气渣联合保护型药皮semi-volatile covering焊条工艺性usability of the electrode/ technicality of th e electrode焊条使用性running characteristics of an electrode/ op erating characteristics of an electrode焊条熔化性melting characteristics of an electrode焊条直径core diameter焊条偏心度eccentricity (of an electrode)药皮重量系数gravity coefficient of coating焊条药皮含水量percentage of moisture for covering焊条夹吃持端bare terminal (of an electrode)焊条引弧端striking end (of an elcetrode)焊剂welding flux/ flux熔炼焊剂fused flux粘结焊剂bonded flux烧结焊剂sintered flux/ agglomerated flux窄间隙埋弧焊焊剂flux for narrow-gap submerged arc w elding低氢型焊剂low hydrogen type flux高速焊剂high speed welding flux无氧焊剂oxygen-free flux低毒焊剂low poison flux磁性焊剂magnetic flux电弧焊arc welding直流电弧焊direct current arc welding交流电弧焊alternating current arc welding三相电弧焊three phase arc welding熔化电弧焊arc welding with consumable金属极电弧焊metal arc welding不熔化极电弧焊arc welding with nonconsumable 碳弧焊carbon arc welding明弧焊open arc welding焊条电弧焊shielded metal arc welding (SMAW) 重力焊gravity welding躺焊fire cracker welding电弧堆焊arc surfacing自动堆焊automatic surfacing躺板极堆焊surfacing by fire cracker welding带极堆焊surfacing with band-electrode振动电弧堆焊vibratory arc surfacing耐磨堆焊hardfacing埋弧焊submerged arc welding (SAW)多丝埋弧焊multiple wire submerged arc welding纵列多丝埋弧焊Tandem sequence (submerged-arc wel ding)横列多丝埋弧焊series submerged arc welding (SAW-S) 横列双丝并联埋弧焊transverse submerged arc welding 热丝埋弧焊hot wire submerged-arc welding窄间隙埋弧焊narrow-gap submerged arc welding弧压反馈电弧焊arc voltage feedback controlling arc w elding自调节电弧焊self-adjusting arc welding适应控制焊接adaptive control welding焊剂层burden; flux layer气体保护电弧焊gas shielded arc welding保护气体protective atmosphere惰性气体inert-gas活性气体active-gas惰性气体保护焊inert-gas (arc) welding氩弧焊argon arc welding熔化极惰性气体保护电弧焊metal inert-gas arc welding钨极惰性气体保护电弧焊tungsten inert-gas arc welding 钨极氢弧焊argon tungsten arc welding脉冲氢弧焊pulsed argon arc welding熔化极脉冲氢弧焊argon metal pulsed arc welding钨极脉冲氢弧焊argon tungsten pulsed arc welding热丝MIG焊hot wire MIG welding热丝TIG焊hot wire TIG welding氨弧焊helium-arc welding活性气体保护电弧焊metal active-gas arc welding混合气体保护电弧焊mixed gas arc welding二氧化碳气体保护电弧焊carbon-dioxide arc welding; C O2 arc welding细丝CO2焊CO2 arc welding with thin wire粗丝CO2焊CO2 arc welding with thick wire磁性焊剂CO2焊unionarc welding药芯焊丝CO2焊arcos arc process; dual shield arc wel ding气电立焊electrogas (arc) welding氮弧焊nitrogen-arc welding水蒸气保护电弧焊water vapour arc welding原子氢焊atomic hydrogen welding冲器室中电弧焊controlled atmosphere arc welding旋转电弧焊rotating arc welding短路过渡电弧焊short circuiting arc welding焊丝横摆频率weaving speed of wire焊丝停摆时间electrode keep time of slider等离子弧焊plasma arc welding (PAW)等离子弧plasma arc等离子流plasma jet转移弧transferred arc非转移弧nontransferred arc联合型等离子弧combined plasma arc主弧main arc维弧pilot arc维弧电流pilot arc surrent双弧现象double arcing双弧临界电流critical current of double arcing 等离子弧焊枪plasma (welding) torch压缩喷嘴constricting nozzle单孔喷嘴single port nozzle多孔喷嘴multiport nozzle压缩喷嘴孔径orifice diameter孔道长度orifice throat length孔道比orifice throat ratio等离子气plasma gas; orifice gas电极内缩长度electrode setback小孔效应keyhole effect小孔型等离子弧焊keyhole-mode welding熔透型等离子弧焊fusion type plasma arc welding大电流等离子弧焊high-current plasma arc welding中电流等离子弧焊intermediate-current plasma arc wel ding小电流等离子弧焊low-current plasma arc welding微束等离子弧焊micro-plasma arc welding交流等离子弧焊AC plasma arc welding脉冲等离子弧焊pulsed plasma arc welding等离子弧堆焊plasma arc surfacing热丝等离子弧堆焊hot wire plasma arc surfacing粉末等离子弧堆焊plasma arc powder surfacing等离子-熔化极惰性气体保护电弧焊plasma MIG welding 转移弧电源transferred arc power supply非转移弧电源nontransferred arc power supply电弧焊设备arc welding equipment电弧焊机arc welding machine直流弧焊机DC arc welding machine交流弧焊机AC arc welding machine交直流两用弧焊机AC/DC arc welding machine单站弧焊机single operator arc welding machine多站弧焊机multi-operator arc welding set固定式弧焊机stationary arc welding machine移动式弧焊机portable arc welding machine台式弧焊机bench arc welding machine内燃机驱动式弧焊机combustion engine driven arc weld ing set电动机驱动式弧焊机motor driven arc welding set熔化极弧焊机arc welding machine using a consumabl e electrode不熔化极弧焊机arc welding machine using a non-cons umable electrode脉冲弧焊机pulsed arc welding machine气体保护弧焊机gas shielded arc welding machine氩弧焊机argon arc welding machine二氧化碳弧焊机CO2 arc welding machine钨极惰性气体保护弧焊机tungsten inert-gas welding ma chine熔化仍惰性气体保护弧焊机metal inert-gas welding mac hine气电立焊机electrogas (arc) welding machine等离子弧焊机plasma arc welding machine微束等离子弧焊机micro-plasma welding equipment原子氢焊机atomic hydrogen welding apparatus埋弧焊机submerged arc welding machine弧焊电源arc welding power source直流弧焊电源DC arc welding power source交流弧焊电源AC arc welding power source交直流两用弧焊电源AC/DC arc welding power source 脉冲弧焊电源pulsed arc welding power source上升特性弧焊电源rising characteristic arc welding pow er source平特性弧焊电源constant –voltage arc welding power s ource下降特性弧焊电源dropping characteristic arc welding p ower source垂降特性弧焊电源constant-current arc welding power source多特性弧焊电源slope-controlled arc welding power so urce逆变式焊接电源inverter welding power source晶体管弧焊电源transistor arc welding power source电源动特性dynamic characteristic电源外特性external characteristic弧焊变压器arc welding transformer弧焊整流器arc welding rectifier硅弧焊整流器silicon arc welding rectifier晶闸管弧焊整流器SCR arc welding rectifier; arc weldin g silicon controlled rectifier脉冲弧焊整流器pulsed arc welding rectifier弧焊发电机arc welding generator焊车welding tractor焊接机头welding head行走机构traveller送丝机构wire feeder等速送丝方式constant wire-feed system变速送丝方式alternate wire-feed system跟踪装置tracer焊丝盘wire reel焊钳electrode holder焊枪welding gun电极夹electrode holder导电嘴tip; contact tube喷嘴nozzle焊剂漏斗flux-hopper高频振荡器oscillator; HF unit脉冲引弧器pulsed arc starter; surge injector脉冲稳弧器pulsed arc stabilizer脉冲激弧器pulsed arc exciter输出电抗器out put reactor镇定变阻器ballast rheostat直流分量抑制器direct current suppressor焊接回路welding circuit额定焊接电流rated welding current焊接电流调节范围range of welding current regulation 空载电压open circuit voltage(no load voltage)约定负载电压conventional load voltage负载持续率duty cycle额定负载持续率rated duty cycle; standard service手工弧焊机manual arc welding machine电焊渣electroslag welding (ESW)手工电渣焊manual electroslag welding丝极电渣焊electroslag welding with wire electrode板极电渣焊electroslag welding with plate electrode 熔嘴电渣焊electroslag welding with consumable nozzl e管极电渣焊electroslag welding with tube electrode窄间隙电渣焊narrow-gap electroslag welding电渣堆焊electroslag surfacing电渣焊机electrosalg welding machine熔嘴consumable nozzle; consumable wire钢冷却板Cu-cooling plate铜滑板copper shoe渣池slag bath渣池深度depth of slag bath渣池电压voltage of slag bath电渣过程稳定性electroslag process stability焊丝间距distance between welding wires电子束焊electron beam welding (EBW)脉冲电子束焊pulsed electron beam welding加速电压acceleration voltage/ operating voltage电子束电流beam current电子束功率beam power电子束功率密度beam power density焦点focal spot焦距focal length工作距离work distance电子束焊机electron beam welding machine高真空电子束焊机full vacuum electron beam welder低真空电子束焊机partial vacuum electron beam welder 非真空电子束焊机nonvacuum electron beam welder真空度vacuum电子枪electron gun二极电子枪diode gun三极电子枪triode gun偏压电极bias electrode电磁透镜electromagnetic lens电子束偏转线圈electron beam deflection coils导流系数perveance钉尖spiking激光焊laser welding/ laser beam welding连续激光焊continuous laser welding脉冲激光焊impulsed laser welding激光焊机laser welding equipment气体激光器gas laser固体激光器solid laser焦斑直径focussed diameter of the beam离焦量clearance between focal point and (plate) surf ace焊缝深宽比weld seam depth-to-width ratio气焊gas welding氧乙炔焊oxy-acetylene welding氢氧焊oxy-hydrogen welding空气乙炔焊air-acetylene welding氧乙炔焊oxy-acetylene flame氢氧焰oxy-hydrogen flame氧煤气焰oxy-coal gas flame焊接火焰welding flame混合比mixing ratio混合气体可燃范围inflammable limit of the gaseous 一次燃烧primary combustion二次燃烧secondary combustion燃烧速度combustion rate燃烧强度combustion intensity火焰热效率flame heating efficiency焰芯inner cone; flame cone内焰internal flame外焰flame envelope中性焰neutral flame氧化焰oxidizing flame碳化焰carburizing flame还原区reducing zone火焰稳定性flame stability回火flashback逆火backfire回烧flashback气体发生速度gasification speed焊炬torch; blow pipe等压式焊炬balanced pressure torch射吸式焊炬injector torch氧乙炔焊炬oxy-acetylene torch焊割两用炬combined cutting and welding torch 混合室mixing chamber喷射器injector焊嘴welding nozzle; welding tip液氧气化器oxygen evaporator气瓶gas cylinder乙炔瓶acetylene cylinder阀罩cylinder cap气瓶阀cylinder valve汇流排cylinder manifold减压器pressure regulator; gas regulator单级减压器single stage regulator两级减压器two stage regulator回火防止器flashback arrestor干式回火防止器dry flashback arrestor水封式回火防止器water-closing type arrestor净化器purifier乙炔发生器acetylene generator低压乙炔发生器low pressure acetylene generator热剂焊thermit welding (TW)热剂补焊thermit repair welding钢轨热剂焊thermit rail welding热剂thermit powder热剂钢水thermit steel热剂反应thermit reaction热剂溶渣thermit slag热剂铸模thermit mold; mold for thermit weld热剂坩埚thermit crucible焊筋collar水下焊underwater welding水下气体保护电弧焊underwater gas shielded arc weldi ng水下等离子弧焊underwater plasma arc welding温式水下焊wet method underwater welding干式水下焊dry method underwater welding局部干式水下焊local dry underwater welding水帘局部干式水下焊water curtain type dry underwater welding遥控水下焊remote controlled underwater welding电弧空腔arc bubble电阻焊resistance welding (RW)点焊spot welding; resistance spot welding凸焊projection welding缝焊seam welding滚点焊roll-spot welding连续点焊stitch welding多点焊multiple spot welding手压点焊push welding; poke welding脉冲点焊pulsation spot welding; multiple-impulse wel ding双面点焊direct spot welding单面点焊indirect spot welding串联点焊series spot welding多点凸焊multiple projection welding频道进缝焊step-by-step seam welding压平缝焊mash seam welding串联缝焊series seam welding对接缝焊butt seam welding; foil-butt seam电阻对焊upset butt welding闪光对焊flash butt welding (FBW)储能焊stored energy welding电容储能点焊condenser discharge spot welding高频电阻焊high frequency resistance welding冲击电阻焊percussion welding胶接点焊spot weld-bonding; weld-bonding闪光flashing; flash过梁bridge; lintel顶锻upsetting; upset夹紧力clamping force顶锻力upsetting force; upset force电极压力electrode force; electrode pressure电极滑移electrode skid焊接循环welding cycle预压时间squeeze time锻压时间forge-delay time; forge time焊接通电时间（电阻焊）welding time (resistance welding) 预热时间preheat time加热时间heat time冷却时间cool time间歇时间quench time; chill time回火时间temper time维持时间hold time。
机械设计专业术语的英语翻译1
机械设计专业术语的英语翻译1机械设计专业术语的英语翻译1 柔性自动化flexibleautomation 润滑油膜lubricantfilm润滑装置lubricationdevice润滑lubrication润滑剂lubricant三角形花键serrationspline三角形螺纹vthreadscrew三维凸轮three - dimensionalcamto stheorem 三心定理kennedy砂轮越程槽grindingwheelgroove砂漏hour glass少齿差行星传动planetarydrivewithsmallteethdifference设计方法学designmethodology设计变量designvariable设计约束designconstraints深沟球轴承deepgrooveballbearing生产阻力productiveresistance升程rise升距lift实际廓线camprofile十字滑块联轴器doubleslidercoupling oldham'scoupling矢量vector输出功outputwork输出构件outputlink输出机构outputmechanism输出力矩outputtorque输出轴outputshaft输入构件inputlink数学模型mathematicmodel实际啮合线actuallineofaction双滑块机构double - slidermechanism, ellipsograph双曲柄机构doublecrankmechanism双曲面齿轮hyperboloidgear双头螺柱studs双万向联轴节constant - velocityordoubleuniversaljoint 双摇杆机构doublerockermechanism双转块机构oldhamcoupling双列轴承doublerowbearing双向推力轴承double - directionthrustbearing松边slack side顺时针clockwise瞬心instantaneouscenter死点deadpoint四杆机构four - barlinkage速度velocity速度不均匀波动系数coefficientofspeedfluctuation速度波动speedfluctuation速度曲线velocitydiagram速度瞬心instantaneouscenterofvelocity塔轮steppulley踏板pedal台钳、虎钳vice太阳轮sungear弹性滑动elasticityslidingmotion弹性联轴器elasticcoupling flexiblecoupling弹性套柱销联轴器rubber - cushionedsleevebearingcoupling 套筒sleeve梯形螺纹acmethreadform特殊运动链specialkinematicchain特性characteristics替代机构equivalentmechanism调节modulation, regulation调心滚子轴承self - aligningrollerbearing调心球轴承self - aligningballbearing调心轴承self - aligningbearing调速speedgoverning调速电动机adjustablespeedmotors调速系统speedcontrolsystem调压调速variablevoltagecontrolGovernor regulator, governorFerromagnetic fluid seals ferrofluidseal Parking phase, stoppingphaseStopping dwellSynchronous belt Synchronousbelt Synchronous belt drive synchronousbeltdrive Convex body convexCam camCam reverse mechanism inversecammechanism Cam mechanism cam, CamMechanismCam profile camprofileCam profile drawing layoutofcamprofile Theoretical profile of cam pitchcurve Flange coupling flangecouplingAtlas and Atlas AtlasGraphical method graphicalmethodPushing distance riseThrust ball bearing thrustballbearing Thrust bearing thrustbearingCutter toolwithdrawalgrooveAnnealed annealGyroscope gyroscopeV band VbeltExternal force externalforceOuter ring outerringOutline size boundarydimensionUniversal coupling Hookscoupling universalcoupling External gear externalgearBending stress beadingstressBending moment bendingmomentWrist wristReciprocating reciprocatingmotionReciprocating seal reciprocatingsealDesign on-netdesign online, ONDInching screw mechanism differentialscrewmechanism Displacement displacementDisplacement curve displacementdiagramPose pose, positionandorientationStable operation stage, steadymotionperiodRobust design robustdesignWorm wormWorm drive mechanism WormgearingNumber of worm heads numberofthreadsDiameter coefficient of worm diametralquotient Worm and worm gear wormandwormgearWorm cam stepping mechanism wormcamintervalmechanism Worm rotation handsofwormWorm gear wormgearPower spring powerspringStepless speed change device steplessspeedchangesdevices Infinity infiniteTie crankarm, planetcarrierField balancing fieldbalancingRadial bearing radialbearingCentripetal force centrifugalforceRelative velocity relativevelocityRelative motion relativemotionRelative clearance relativegapQuadrant quadrantClay plasticineFine tooth thread finethreadsPin pinConsuming consumptionPinion pinionPath minordiameterRubber spring balataspringModified trapezoidal acceleration motion law modifiedtrapezoidalaccelerationmotionCorrection of motion law of sinusoidal accelerationmodifiedsineaccelerationmotionHelical gear HelicalGearCross key, hook head wedge key taperkeyLeakage leakageHarmonic gear harmonicgearHarmonic drive harmonicdrivingHarmonic generator harmonicgeneratorEquivalent spur gear of helical gear equivalentspurgearofthehelicalgearMandrel spindleTravel speed variation factorcoefficientoftravelspeedvariationTravel speed ratio coefficient advance-toreturn-timeratio Planetary gear unit planetarytransmissionPlanet gear planetgearPlanetary gear change gear planetaryspeedchangingdevices Planetary gear train planetarygeartrainForm closed cam mechanismpositive-driveorform-closedcammechanismVirtual reality virtualrealityVirtual reality technology virtualrealitytechnology, VRT Virtual reality design, virtualrealitydesign, VRDVirtual constraint redundantorpassiveconstraintAllowable imbalance quantity allowableamountofunbalance Allowable pressure angle allowablepressureangleAllowable stress allowablestress, permissiblestressCantilever structure cantileverstructureCantilever beam cantileverbeamCyclic power flow circulatingpowerloadRotational torque runningtorqueRotary seal rotatingsealRotational motion rotarymotionType selection typeselectionPressure pressurePressure center centerofpressureCompressor compressorCompressive stress compressivestressPressure angle pressureangleInlay couplings jawteethpositive-contactcouplingJacobi matrix JacobimatrixRocker rockerHydraulic transmission hydrodynamicdriveHydraulic coupler hydrauliccouplersLiquid spring liquidspringHydraulic stepless speed change hydraulicsteplessspeedchanges Hydraulic mechanism hydraulicmechanismGeneralized kinematic chain generalizedkinematicchainMoving follower reciprocatingfollowerMobile sub prismaticpair, slidingpairMobile joints prismaticjointMoving cam wedgecamProfit and loss work incrementordecrementworkStress amplitude stressamplitudeStress concentration stressconcentrationStress concentration factor factorofstressconcentration Stress diagram stressdiagramStress strain diagram stress-straindiagramOptimum design optimaldesignOilbottle cupI oilcanOil groove seal oilyditchsealHarmful resistance uselessresistanceBeneficial resistance usefulresistanceEffective pull effectivetensionEffective circumferential force effectivecircleforce Harmful resistance detrimentalresistanceCosine acceleration motion cosineaccelerationorsimpleharmonicmotionPreload preloadPrime mover primermoverRound belt roundbeltBelt drive roundbeltdriveArc tooth thickness circularthicknessCircular cylindrical worm hollowflankwormRounded radius filletradiusDisc friction clutch discfrictionclutchDisc brake discbrakePrime mover primemoverOriginal mechanism originalmechanismCircular gear circulargearCylindrical roller cylindricalrollerCylindrical roller bearings cylindricalrollerbearingCylindrical pair cylindricpairCylindrical cam stepping motion mechanism barrelcylindriccamCylindrical helical tension spring cylindroidhelical-coilextensionspringCylindrical helical torsion spring cylindroidhelical-coiltorsionspringCylindrical helical compression spring cylindroidhelical-coilcompressionspringCylindrical cam cylindricalcamCylindrical worm cylindricalwormCylindrical coordinate manipulator cylindricalcoordinatemanipulator Conical spiral torsion springconoidhelical-coilcompressionspringTapered roller taperedrollerTapered roller bearing taperedrollerbearingBevel gear mechanism bevelgearsTaper angle coneangleThe original drivinglinkBound constraintConstraint constraintconditionConstraint reaction force constrainingforceJump jerkJump curve jerkdiagramInversion of motion, kinematicinversionMotion scheme design kinematicpreceptdesign Kinematic analysis kinematicanalysisKinematic pair kinematicpairMoving component movinglinkKinematic diagram kinematicsketchKinematic chain kinematicchainMotion distortion undercuttingKinematic design kinematicdesignMotion cycle cycleofmotionKinematic synthesis kinematicsynthesisUneven coefficient of operation coefficientofvelocityfluctuationKinematic viscosity kenematicviscosityLoad loadLoad deformation curve load - DEFORMATIONCURVE Load deformation diagram load - deformationdiagram Narrow V band narrowVbeltFelt ring seal feltringsealThe generating method of generatingTensioning force tensionTensioner tensionpulleyVibration vibrationVibration torque shakingcoupleVibration frequency frequencyofvibration Amplitude amplitudeofvibrationTangent mechanism tangentmechanismForward kinematics directforwardkinematics Sinusoidal mechanism sinegenerator, scotchyoke Loom loomNormal stress and normal stress normalstress Brake brakeSpur gear SpurGearStraight bevel gear straightbevelgearRight triangle righttriangleCartesian coordinate manipulator CartesiancoordinatemanipulatorCoefficient of diameter diametralquotient Diameter series diameterseriesStraight profile hourglass worm gear hindleyworm Linear motion linearmotionStraight axis straightshaftMass massCentroid centerofmassExecution component executivelink workinglinkProduct of mass and diameter mass-radiusproduct Intelligent design, intelligentdesign, IDIntermediate plane mid-planeCenter distance centerdistanceVariation of center distance centerdistancechange Center wheel centralgearMedium diameter meandiameterTerminate the meshing point finalcontact, endofcontact Week Festival pitchPeriodic velocity fluctuation periodicspeedfluctuation Epicyclic gear train epicyclicgeartrainElbow mechanism togglemechanismAxis shaftBearing cap bearingcupBearing alloy bearingalloyBearing block bearingblockBearing height bearingheightBearing width bearingwidthBearing bore bearingborediameterBearing life bearinglifeBearing ring bearingringBearing outer diameter bearingoutsidediameterJournal JournalBush and bearing lining bearingbushShaft end retaining ring shaftendringCollar shaftcollarShoulder ShaftShoulderAxial angle shaftangleAxial axialdirectionAxial profile axialtoothprofileAxial equivalent dynamic load dynamicequivalentaxialload Axial equivalent static load staticequivalentaxialload Axial basic rated dynamic load basicdynamicaxialloadrating Axial basic rated static load basicstaticaxialloadrating Axial contact bearing axialcontactbearingAxial plane axialplaneAxial clearance axialinternalclearanceAxial load AxialLoadAxial load factor axialloadfactorAxial component axialthrustloadActive component, drivinglinkDriving gear drivinggearDriving pulley drivingpulleyRotating guide rod mechanism whitworthmechanismRevolute pair revoluteturningpairThe speed is swivelingspeed rotatingspeedRotating joint revolutejoint Rotating shaft revolvingshaftRotor rotorRotor balance balanceofrotor Assembly condition assemblycondition Bevel gear bevelgearCone top commonapexofconeCone distance conedistanceCone wheel bevelpulley bevelwheel。
土木工程英语证书考试(PEC)-道路勘测设计专业术语
土木工程英语证书（PEC）考试-道路勘测设计专业术语道路road公路highway都市道路city road；urban road厂矿道路factories and mines road林区道路forest road乡村道路country road车辆换算系数vehicle conversion factor城间道路interurban road都市出入口公路city approach highway道路工程road engineering丝绸之路the silk road道路网road metwork道路(网)密度density of road network道路技术原则technical standard of road设计车辆design vehicle特种车辆special vehicle计算行车速度(设计车速) design speed道路建筑限界boundary line of road construction道路用地范围right of way净空clearance等级道路classified road辅道relief road高速公路free way；motorway部分控制进入partial control of access等级公路classified highway等外公路substandard highway干线公路arterial highway支线公路feeder highway国家干线公路(国道) natilnal trunk highway省干线公路(省道) provincial trunk highway县公路(县道) county road乡公路(乡道) township road (county road)绕行公路bypass公路自然区划clinatic zoning for highway(都市)迅速路expressway(都市)主干路arterial road(都市)次干路secondary trunk road(都市)支路branch road街道street郊区道路suburban road居住区道路residential street工业区道路industial district road厂外道路ractory-out road厂内道路factory-in road(厂内)主干道arterial road(厂内)次干道secondary trunk road(厂内)支道branch road露天矿山道路opencast mine road生产干线prductive arterial road生产支线productive branch road联络线linking-up road林区公路fores thighway运材道路haul road集材道路skid road护林防火道路protection forest fire-proof road 连接道路linking-up road冻板道路freeze road木排道corduroy road自行车道cycle track；cycle path畜力车道cattle-pass驮道bridler road项目提议书project Proposal可行性研究feasibility study项目任务书Project charter设计规范design specification初步设计Preliminary Design施工图设计construction documents design 交通构成traffic composition混合交通mixed traffic交通流traffic flow车流vehicle stream交通密度traffic density车头间距spachead way车头时距time headway车(辆)间净距vehicular gap延误delay点速度spot speed行驶速度running speed区间速度overall speed运行速度operating speed临界速度iptimum speed；critical speed 时间平均速度time mean speed空间平均速度space mean speed经济车速economic speed自由车速free-flow speed交通量traffic volume年平均日交通量annual average daily traffic月平均日交通量monthly average daily traffic年第30位最大小时交通量thirtieth highest annual hourly volume 年最大小时交通量maximum annual hourly volume高峰小时交通量peak hourly volume设计小时交通量design hourly volume通行能力traffic capacity基本通行能力basic trsffic capacity也许通行能力possible traffic capacity设计通行能力design traffic capacity道路服务水平level of servic e交叉口通行能力capacity of imtersection道路交通规划traffic planning交通调查traffic survey交通量调查traffic volume survey交通量观测站traffic volume observation起迄点调查origin-destination study出行trip境内交通local traffic过境交通through traffic出境交通outbound traffic入境交通inboud traffic交通发生traffic generation交通分布traffic distribution交通方式划分model split交通量分派traffic assignment交通量预测traffic volume prognosis路网通行能力capacity of metwork道路网规划road network planning棋盘式道路系统gridiron road systim环形辐射式道路系统ring and radial road system自由式道路系统free style road system混合式道路系统combination-type road system(都市)道路面积率road area ratio(都市)人均道路面积road area ratio牵引力tractive effort行驶阻力driving resistance滚动阻力rolling resistance空气阻力air friction；air resistance坡度阻力slope resistance；grade resistance(都市道路)平面设计alignment design；plane design道路中线center line of road道路轴线road axis道路路线route of road道路线形road alignment平面线形horizontal alignment横向力系数lateral force ratio缓和曲线transition curve；easement curve离心加速度centrifugal acceleration回旋线spiral curve；clothoid交点intersection point, IP主点major point偏角angle of deflection偏角法method of deflection angle几何要素geometry element圆曲线参数parameter of circular curve切线支距法tangent offset method缓和曲线参数parameter of easement curve急弯sharp curve缓弯flat curve坐标coordinate线形要素alignment elment平曲线horizontal curve最小平曲线半径minimum radius of horizontal xurve 汽车最小转弯半径minimum turning radius圆曲线circular curve复曲线compound curve复曲线点point of compound curve, PCC反向曲线reverse curve同向曲线adjacent curve in one direction断背曲线broken-back curve回头曲线switch-back curve；reverse loop卵形曲线ovoid curve视线sight line视距sight distance停车视距stopping sight distance超车视距overtaking sight distance[司机]反应距离[driver]reaction distance[司机]感觉反应距离[driver] perception-reaction distance [司机]感觉反应时间[driver] perception-reaction time [司机]判断时间[driver] judgement time[司机]识别距离[driver] decipherment distance侧向视野field of lateral vision侧向余宽lateral clearance侧向最小安全间距minimum safe lateral clearance纵断面设计profile design；design of vertical alignment 纵面线形vertical alignment高程(标高) elevation地面高程groud elevation设计高程designed elevation(路线)纵断面图vertical profile map中桩填挖高度height of cut and fill at center stake纵坡longitudinal gradient最大纵坡maximum longitudinal gradient最小纵坡minimum longitudinal gradient变坡点grade change point平均纵坡average gradient坡长限制grade length limitation纵坡折减grade compensation缓和坡段transitional gradient竖曲线vertical curve凸形竖曲线convex vertical curve凹形竖曲线concave vertical curve路幅roadway车行道(行车道) carriage way车道lane内侧车道fast lane中间车道cemter lane外侧车道nearside lane附加车道auxiliary lane变速车道speed-change lane加速车道acceleration lane减速车道deceleration lane超车车道overtaking lane爬坡车道climbing lane停车车道parking lane紧急停车带emergency parking strip；lay-by错车道passing bay回车道(回车场) turmaround loop专用车道accommodation lane错车洞passing bay in tunnel单行路one-way road车道宽度lane-width人行道side walk；foot way分隔带separator；central reserve路缘带marginal strip路肩shoulder；verge硬路肩hard shoulder路缘石curb平缘石flush curb立缘石(侧石) vertical curb平石gutter apron街沟(偏沟) gutter路侧带curb side strip绿化带green belt横坡cross slope路拱crown路拱曲线camber curve合成坡度resultant gradient平曲线加宽curve widening加宽过渡段transition zone of curve widening超高superelevation超高缓和段superelevation runoff断面渐变段transition zone of cross section超高横坡度superelevation slope土方调配cut-fill transition土方调配图cut-fill transition program土方调配经济运距economical hauling distance横断面图cross-cectional profile路基subgrade路堤embankment路堑cutting半填半挖式路基part-cut part-fill subrade台口式路基benched subgrade路基宽度width of subgrade路基设计高程design elevation of subgrade(路基)最小填土高度minimum height of fill边坡side slope边坡平台plain stage of slope边坡坡度grade of side slope边坡修整slope trimming(边)坡顶top of slope(边)坡脚toe of slope护坡道berm边坡平台plain stage of slope碎落台stage for heaping soil and brocken rock 护坡slope protection挡土墙retaining wall重力式挡土墙gravity retaining wall衡重式挡土墙balance weight retaining wall悬臂式挡土墙cantilever retaining wall扶壁式挡土墙counterfort retaining wall柱板式挡土墙pile and plank retaining wall锚杆式挡土墙anchored retaining wall by tie rods 锚锭板式挡土墙anchored bulkhead retaining wall 加筋土挡土墙reinforced earth retaining wall石笼rock rilled gabion抛石riprap护栏guard rail护墙guard wall标柱guard post防护栅safety fence防炫屏(遮光栅) anti-dizzling screen隔音墙acoustic防沙设施sand protection facilities防雪设施snow protection facilities道路限界架boundary frame on road道路照明设施ighting facilies of road交通广场traffic square停车场parking lot反坡安全线adverse grade for safety公交(车辆)停靠站bus bay ；parking station综合管道(综合管廊) composite pipe line渡口ferry道路绿化road planting街道绿化street planting行道树street trees绿篱hedge；living fence功能栽植function planting护路林shelter belt里程碑ki lometer stone百米桩hectometer stake踏勘reconnaissance(道路工程)方案图road project(道路)平面示意图plane sketch线形设计alignment design公路景观设计highway landscape design(都市道路)竖向设计design of elevation选线route selection路线控制点control point定线location of line纸上定线paper location比较线alternative line展线route deveopment初测preliminary survey定测location survey地貌topographic feature地物culture地形topographyf台地terrace垭口pass；saddle back平原区plain terrain微丘区rolling terrain重丘区hilly terrain山岭区mountainous terrain沿溪线valley line山脊线ridge line山坡线(山腰线) hill-side line越岭线ridge line(道路)隧道tunnel半山洞half tunnel明洞open cut tunnel导线traverse导线测量traverse survey中线测量center line survey施工测量construction survey竣工测量final survey(路线)平面图plan view交点intersection point虚交点inaginary intersection point 转点turning point转角intersection angle偏角deflection angle方位角azimuth angle象限角bearing angle方向角direction angle切线长tangent length曲线长curve length外(矢)距external distance测站instrument station测点observation point中桩center stake加桩additional stake护桩reference stake断链broken chainage水准测量leveling survey水准点bench mark绝对基面absolute datum地形测量topographic survey基线base line地形图topographic map等高线comtour line横断面测量cross-sectional survey坑探intersection plan钻探boring(道路)地质剖面图geological section(道路)地质柱状图boring log地下水位uderground water level摄影测量photogrammetry航空摄影测量aerial photogrammetry地面立体摄影测量ground stereophotogrammetry地面控制点测量ground control-point survey航摄基线aerophoto base影像地图ohotographic map航摄像片判读aerophto interpretation综合法测图planimetric photo全能法测图universal photo微分法测图differential photo像片镶嵌图photo mosaic(平面)交叉口intersection；road crossing交叉口进口intersection entrance,approach交叉口出口intersection exit加宽转角式交叉口intersection with widende corners 拓宽路口式交叉口flaredintersection分道转弯式交叉口channelized intersection渠化交通channelization交错weaving交错路段weaving section合流converging分流diverging冲突点conflic t point交错点weaving point交通岛traffic island导流岛channelization island中心岛center-island安全岛refug island道口铺面paved crossing道口限界架boundary frame on crossing交通安全设施traffic safety device人行横道cross walk斑马线zebra crossing人行地道pedestrian underpass人行天桥pedestrian overcrossing分隔设施separate facilities视距三角形sight triangle路口视距sight distance of intersection标志视认性sign legibility(平曲线)横净距lateral elear distance of curvecut corner for sight line道路曲线最内侧旳车道行车(路口)截角视野field of vision道路交叉(路线交叉) Road intersection,crossing, junction 交叉角intersection angle(铁路)道口railroad grade crossing平面交叉at-grade intersection；grade crossing 多岔交叉multiple-leg intersection环形交叉rotary intersection；roundabout微形环交mini-roundabout十字形交叉cross roads丁字形交叉(T形交叉) T intersection错位交叉staggered junctionY形交叉Y intersection交叉口平面图intersection plan立体交叉grade-separated junction上跨铁路立体交叉overpass grade separation下穿铁路立体交叉underpass grade separation简朴立体交叉grade separation互通式立体交叉interchange苜蓿叶形立体交叉clover-leaf interchange半苜蓿叶形立交partial clover-leaf interchange定向式立体交叉directional interchange半定向式立交semi-directional interchange菱形立体交叉diamond in terchange喇叭形立体交叉trumpet interchange环形立体交叉rotary interchange分隔式立体交叉interchange woth special bicycle track 匝道ramp单向匝道one-wayramp双向匝道two-way ramp环形匝道loop ramp车道分布lane distribution车道分界线lane line车道平衡lane balance车道收费机lane toll machine车道通行能力lane capacity车道系数coefficient of lanes车道拥有率lane occupancy ratio出口匝道控制exit ramp control路基排水subgrade drainage地表水surface water地下水underground water毛细水capillary water边沟intercepting ditch截水沟intercepting ditch排水沟drainage ditch急流槽chute跌水drop water蒸发池evaporation pond盲沟blind drain；blind ditch渗水井seepage well过水路面ford暴雨强度intensity of rainstorm(排水)设计重现期design frequency街道排水street drainage管道排水pipe drainage渠道排水gutter drainage(立体交叉)泵站排水drainage by pumping station雨水口inlet；gully检查井manhole雨水口支管branch pipe of inlet泄水口drain opening取土坑borrow pit弃土堆waste bank管线综合设计under-ground pipes comprehensive design 路面pavement暗涵buried culvert饱和流量saturation volume饱和流率saturation volume rate暴雨径流rainstorm run-off暴雨强度rainstorm intensity。
JournalofHarbinInstituteofTechnology》（NewSeries）
《Journal of Harbin Institute of Technology》(New Series)V ol.15, No.3June 2008ContentsTowards structural web services discoveryCHEN Jiang feng297A control model for hysteresis based on microscopic polarization mechanisms in piezoelectric actuatorRU Chang hai, SUN Li ning, RONG Wei bin302Activity based resource capability modeling307Similarity theory based method for MEMS dynamics analysisLI Gui xian, PENG Y un feng, ZHANG Xin312Anti impact and energy absorption of metal and compound thin wall cylindrical tubes CHEN Y ong tao, SHEN Zhi chun, ZHENG Gang tie317Hydrogen producting characteristics by a novel strain of bacteria ethanoligenens sp. B49XU Li ying, REN Nan qi, WANG Xing zu, ZHANG Ying, XU Hui, CHEN Guan xiong, JIA Y ong feng321Motion estimation of elastic articulated objects from image contoursPAN Hai lang, DAI Y ue wei, SHI Lei326Impact of artificial waterfall using reclaimed water to VOCs and its health risk assessmentMA Jin jun, ZHU Hong liang, ZHAO San ping, W ANG Y ong jie, ZHU Y ong bing 331Gene control of acupuncture and moxibustion preconditioning on apoptosis in ischemic cardiac muscle of rats with re perfusionSUN Zhong ren, LI Xiao ning, ZHAO Y u hui, TIAN Y an yan, XU Li 341 Analysis on testing and operational reliability of softwareZHAO Jing，LIU Hong wei，CUI Gang，W ANG Hui qiang345Nonlinear dynamic characteristics model of labyrinth seal based on Muszynska modelYE Jian huai, LIU Zhan sheng, ZHANG Guang hui351Modified rubberized stone matrix asphalt for Nineveh roadsAl Hadidy AI, TAN Yi qiu356A real time fault tolerant scheduling algorithm with low dependability cost in on board computer systemWANG Pei dong, WEI Zhen hua361Test case generation based on orthogonal table for software black box testingLIU Jiu fu,Y ANG Zhong,Y ANG Zhen xing,SUN Lin365Supplier pricing based on threshold cointegration in agri supply chainLENG Zhi jie, TANG Huan wen 369Correlation of the positive stress ratio effects on fatigue crack propagation rate of aluminium alloys based on a new parameter da／dSLU Xia mei, MA Y un fei, ZHANG Jia zhen374Experimental study on tensile failure process of double K fracture parameters in rollercompacted concrete layerHUANG Zhi qiang, SONG Y u pu,WANG Xue zhi378Julia sets of semi conjugated transcendental entire functionsWANG Xiao ling, SUN Lang wei, Y ANG De gui, BAO Y uan sheng383 Application of fuzzy logic in content based image retrievalWANG Xiao ling, XIE Kang lin386V ertical dynamic response characteristics of single pile in non homogeneous soil layers KONG De sen, LUAN Mao tian, LING Xian zhang393Experimental study of a simple pressure loss coefficient model for multi hole orificeZHAO Tian yi, ZHANG Ji li399Optimization of S surface controller for autonomous underwater vehicle with immune genetic algorithmLI Y e, ZHANG Lei, WAN Lei, LIANG Xiao404Three controllable factors of steady operation of EGSB reactorLI Hui li, LU Bing nan, LI Fang 411Fault tolerant design for joint of HIT／DLR space robot armNI Feng lei, JIN Ming he, SHI Shi cai, LIU Hong415Radius model of convex vertical curve of freeway based on attachment coefficientLI Song ling, PEI Y u long 422Surface flow constructed wetland with composite plant bed for pretreatment of micro polluted Y ellow River raw water in ChinaY ANG Xu, YU Shui li, Y AN Xiao ju, ZHAO Y an,XIU Chun hai, ZHANG Hong yang426Information loss recovery for JPEG2000 image transmission in an error prone environment LIU Jie yu, ZHANG De yun430Synthesis and electrochemical characterization of LiNi0 78Co0 2Al0 02O2 cathode materials in a novel co precipitation methodGU Da ming, TIAN Qi you436Transport and transformation of nitrobenzene in Songhua River and calculation of flux and remnant based on mathematical quantification analysisGAO Fei, HAN Hong jun, MA Wen cheng, W ANG Wei439。
道路纵坡设计
s2 R 1.5 0.0349s
Rmin
2R
13.5
经分析，得技术标准以限制凹型竖曲线离心力条件为依据。 规定值，如表4－11、4-12。
第三节、 竖曲线设计
2.竖曲线设计标准
G v 2 GV 2 F g R 127R
课程小结
• 1、道路纵坡设计存在最大纵坡和最小纵坡限坡和 限长。 • 2、当出现连续坡度时必须中间设制缓和坡度和最 小坡长。 • 3、坡度大小还与车速有关联。 • 4、坑上的地表道路设计与地形、地貌有关。
课间休息
•
1、
坡长定义－－指变坡点与变坡点之间的水平长度。
最大坡长限制
• ⑴限制理由：如果台阶并段采用了纵坡大坡道，夜间行驶时司机易出现 骤睡而引发重大事故，同时长大坡道也易造成发动机过热现象。持续下 坡刹车频繁危及安全。
⑵采用调查法确定一个坡长，一般尽量不要连续台阶连接。 ⑶影响因素 ①动力特性——爬坡能力
R min S2 3.98
3.98
V2 R 3 .6
(4 - 14)
( 4 - 16)
(Hale Waihona Puke - 17)R min 2s
2
经比较，式（4－16）的计算结果较小，故作为标准的制定依据。
第三节、 竖曲线设计
• （4）、竖曲线设计的一般要求
• ①、尽量选用较大的竖曲线半径，利于平顺行车。
• ②、反向曲线间应有一段直线连接，其长度能保持按设计 车速3秒的车程。
•
路，i ≥5％的坡度称为陡坡，一般在陡坡之间要设置缓和 坡度，缓坡没有坡长最大限制。 •
常用机械专业术语中英文对照
常用机械专业术语中英文对照基础机构fundamental mechanism差不多额定寿命basic rating life基于实例设计case-based design,CBD基圆base circle基圆半径radius of base circle基圆齿距base pitch基圆压力角pressure angle of base circle基圆柱base cylinder基圆锥base cone急回机构quick-return mechanism急回特性quick-return characteristics急回系数advance-to return-time ratio急回运动quick-return motion棘轮ratchet棘轮机构ratchet mechanism棘爪pawl极限位置extreme (or limiting) position极位夹角crank angle between extreme (or limiting) positions运算机辅助设计computer aided design, CAD运算机辅助制造computer aided manufacturing, CAM运算机集成制造系统computer integrated manufacturing system, CIMS运算力矩factored moment; calculation moment运算弯矩calculated bending moment加权系数weighting efficient加速度acceleration加速度分析acceleration analysis加速度曲线acceleration diagram尖点pointing; cusp尖底从动件knife-edge follower间隙backlash间歇运动机构intermittent motion mechanism 减速比reduction ratio减速齿轮、减速装置reduction gear减速器speed reducer减摩性anti-friction quality渐开螺旋面involute helicoid渐开线involute渐开线齿廓involute profile渐开线齿轮involute gear渐开线发生线generating line of involute渐开线方程involute equation渐开线函数involute function渐开线蜗杆involute worm渐开线压力角pressure angle of involute渐开线花键involute spline简谐运动simple harmonic motion键key键槽keyway交变应力repeated stress交变载荷repeated fluctuating load交叉带传动cross-belt drive交错轴斜齿轮crossed helical gears胶合scoring角加速度angular acceleration角速度angular velocity角速比angular velocity ratio角接触球轴承angular contact ball bearing角接触推力轴承angular contact thrust bearing 角接触向心轴承angular contact radial bearing 角接触轴承angular contact bearing铰链、枢纽hinge校正平面correcting plane接触应力contact stress接触式密封contact seal阶梯轴multi-diameter shaft结构structure结构设计structural design截面section节点pitch point节距circular pitch; pitch of teeth节线pitch line节圆pitch circle节圆齿厚thickness on pitch circle节圆直径pitch diameter节圆锥pitch cone节圆锥角pitch cone angle解析设计analytical design紧边tight-side紧固件fastener径节diametral pitch径向radial direction径向当量动载荷dynamic equivalent radial load径向当量静载荷static equivalent radial load径向差不多额定动载荷basic dynamic radial load rating 径向差不多额定静载荷basic static radial load tating径向接触轴承radial contact bearing径向平面radial plane径向游隙radial internal clearance径向载荷radial load径向载荷系数radial load factor径向间隙clearance静力static force静平稳static balance静载荷static load静密封static seal局部自由度passive degree of freedom矩阵matrix矩形螺纹square threaded form锯齿形螺纹buttress thread form矩形牙嵌式离合器square-jaw positive-contact clutch 绝对尺寸系数absolute dimensional factor绝对运动absolute motion绝对速度absolute velocity均衡装置load balancing mechanism抗压强度compression strength开口传动open-belt drive开式链open kinematic chain开链机构open chain mechanism可靠度degree of reliability可靠性reliability可靠性设计reliability design, RD空气弹簧air spring空间机构spatial mechanism空间连杆机构spatial linkage空间凸轮机构spatial cam空间运动副spatial kinematic pair空间运动链spatial kinematic chain空转idle宽度系列width series框图block diagram雷诺方程Reynolds‘s equation离心力centrifugal force离心应力centrifugal stress离合器clutch离心密封centrifugal seal理论廓线pitch curve理论啮合线theoretical line of action隶属度membership力force力多边形force polygon力封闭型凸轮机构force-drive (or force-closed) cam mechanism 力矩moment力平稳equilibrium力偶couple力偶矩moment of couple连杆connecting rod, coupler连杆机构linkage连杆曲线coupler-curve连心线line of centers链chain链传动装置chain gearing链轮sprocket ; sprocket-wheel ; sprocket gear ; chain wheel联组V 带tight-up V belt联轴器coupling ; shaft coupling两维凸轮two-dimensional cam临界转速critical speed六杆机构six-bar linkage龙门刨床double Haas planer轮坯blank轮系gear train螺杆screw螺距thread pitch螺母screw nut螺旋锥齿轮helical bevel gear螺钉screws螺栓bolts螺纹导程lead螺纹效率screw efficiency螺旋传动power screw螺旋密封spiral seal螺纹thread (of a screw)螺旋副helical pair螺旋机构screw mechanism螺旋角helix angle螺旋线helix ,helical line绿色设计green design ; design for environment马耳他机构Geneva wheel ; Geneva gear马耳他十字Maltese cross脉动无级变速pulsating stepless speed changes脉动循环应力fluctuating circulating stress脉动载荷fluctuating load铆钉rivet迷宫密封labyrinth seal密封seal密封带seal belt密封胶seal gum密封元件potted component密封装置sealing arrangement面对面安装face-to-face arrangement面向产品生命周期设计design for product`s life cycle, DPLC 名义应力、公称应力nominal stress模块化设计modular design, MD模块式传动系统modular system模幅箱morphology box模糊集fuzzy set模糊评判fuzzy evaluation模数module摩擦friction摩擦角friction angle摩擦力friction force摩擦学设计tribology design, TD摩擦阻力frictional resistance摩擦力矩friction moment摩擦系数coefficient of friction摩擦圆friction circle磨损abrasion ;wear; scratching末端执行器end-effector目标函数objective function耐腐蚀性corrosion resistance耐磨性wear resistance挠性机构mechanism with flexible elements挠性转子flexible rotor内齿轮internal gear内齿圈ring gear内力internal force内圈inner ring能量energy能量指示图viscosity逆时针counterclockwise (or anticlockwise)啮出engaging-out啮合engagement, mesh, gearing啮合点contact points啮合角working pressure angle啮合线line of action啮合线长度length of line of action啮入engaging-in牛头刨床shaper凝固点freezing point; solidifying point扭转应力torsion stress扭矩moment of torque扭簧helical torsion spring诺模图NomogramO 形密封圈密封O ring seal盘形凸轮disk cam盘形转子disk-like rotor抛物线运动parabolic motion疲劳极限fatigue limit疲劳强度fatigue strength偏置式offset偏( 心) 距offset distance偏心率eccentricity ratio偏心质量eccentric mass偏距圆offset circle偏心盘eccentric偏置滚子从动件offset roller follower偏置尖底从动件offset knife-edge follower偏置曲柄滑块机构offset slider-crank mechanism 拼接matching评判与决策evaluation and decision频率frequency平带flat belt平带传动flat belt driving平底从动件flat-face follower平底宽度face width平分线bisector平均应力average stress平均中径mean screw diameter平均速度average velocity平稳balance平稳机balancing machine平稳品质balancing quality平稳平面correcting plane平稳质量balancing mass平稳重counterweight平稳转速balancing speed平面副planar pair, flat pair平面机构planar mechanism平面运动副planar kinematic pair平面连杆机构planar linkage平面凸轮planar cam平面凸轮机构planar cam mechanism平面轴斜齿轮parallel helical gears一般平键parallel key其他常用机构other mechanism in common use起动时期starting period启动力矩starting torque气动机构pneumatic mechanism奇特位置singular position起始啮合点initial contact , beginning of contact气体轴承gas bearing千斤顶jack嵌入键sunk key强迫振动forced vibration切齿深度depth of cut曲柄crank曲柄存在条件Grashoff`s law曲柄导杆机构crank shaper (guide-bar) mechanism曲柄滑块机构slider-crank (or crank-slider) mechanism 曲柄摇杆机构crank-rocker mechanism曲齿锥齿轮spiral bevel gear曲率curvature曲率半径radius of curvature曲面从动件curved-shoe follower曲线拼接curve matching曲线运动curvilinear motion曲轴crank shaft驱动力driving force驱动力矩driving moment (torque)全齿高whole depth权重集weight sets球ball球面滚子convex roller球轴承ball bearing球面副spheric pair球面渐开线spherical involute球面运动spherical motion球销副sphere-pin pair球坐标操作器polar coordinate manipulator燃点spontaneous ignition热平稳heat balance; thermal equilibrium人字齿轮herringbone gear冗余自由度redundant degree of freedom柔轮flexspline柔性冲击flexible impulse; soft shock柔性制造系统flexible manufacturing system; FMS柔性自动化flexible automation润滑油膜lubricant film润滑装置lubrication device润滑lubrication润滑剂lubricant三角形花键serration spline三角形螺纹V thread screw三维凸轮three-dimensional cam三心定理Kennedy`s theorem砂轮越程槽grinding wheel groove砂漏hour-glass少齿差行星传动planetary drive with small teeth difference 设计方法学design methodology设计变量design variable设计约束design constraints深沟球轴承deep groove ball bearing生产阻力productive resistance升程rise升距lift实际廓线cam profile十字滑块联轴器double slider coupling; Oldham‘s coupling 矢量vector输出功output work输出构件output link输出机构output mechanism输出力矩output torque输出轴output shaft输入构件input link数学模型mathematic model实际啮合线actual line of action双滑块机构double-slider mechanism, ellipsograph双曲柄机构double crank mechanism双曲面齿轮hyperboloid gear双头螺柱studs双万向联轴节constant-velocity (or double) universal joint双摇杆机构double rocker mechanism双转块机构Oldham coupling双列轴承double row bearing双向推力轴承double-direction thrust bearing松边slack-side顺时针clockwise瞬心instantaneous center死点dead point四杆机构four-bar linkage速度velocity速度不平均( 波动) 系数coefficient of speed fluctuation 速度波动speed fluctuation速度曲线velocity diagram速度瞬心instantaneous center of velocity塔轮step pulley踏板pedal台钳、虎钳vice太阳轮sun gear弹性滑动elasticity sliding motion弹性联轴器elastic coupling ; flexible coupling弹性套柱销联轴器rubber-cushioned sleeve bearing coupling 套筒sleeve梯形螺纹acme thread form专门运动链special kinematic chain特性characteristics替代机构equivalent mechanism调剂modulation, regulation调心滚子轴承self-aligning roller bearing调心球轴承self-aligning ball bearing调心轴承self-aligning bearing调速speed governing调速电动机adjustable speed motors调速系统speed control system调压调速variable voltage control调速器regulator, governor铁磁流体密封ferrofluid seal停车时期stopping phase停歇dwell同步带synchronous belt同步带传动synchronous belt drive凸的，凸面体convex凸轮cam凸轮倒置机构inverse cam mechanism凸轮机构cam , cam mechanism凸轮廓线cam profile凸轮廓线绘制layout of cam profile凸轮理论廓线pitch curve凸缘联轴器flange coupling图册、图谱atlas图解法graphical method推程rise推力球轴承thrust ball bearing推力轴承thrust bearing退刀槽tool withdrawal groove退火anneal陀螺仪gyroscopeV 带V belt外力external force外圈outer ring外形尺寸boundary dimension万向联轴器Hooks coupling ; universal coupling外齿轮external gear弯曲应力beading stress弯矩bending moment腕部wrist往复移动reciprocating motion往复式密封reciprocating seal网上设计on-net design, OND微动螺旋机构differential screw mechanism位移displacement位移曲线displacement diagram位姿pose , position and orientation稳固运转时期steady motion period稳健设计robust design蜗杆worm蜗杆传动机构worm gearing蜗杆头数number of threads蜗杆直径系数diametral quotient蜗杆蜗轮机构worm and worm gear蜗杆形凸轮步进机构worm cam interval mechanism 蜗杆旋向hands of worm蜗轮worm gear涡圈形盘簧power spring无级变速装置stepless speed changes devices无穷大infinite系杆crank arm, planet carrier现场平稳field balancing向心轴承radial bearing向心力centripetal force /离心力centrifugal force相对速度relative velocity相对运动relative motion相对间隙relative gap象限quadrant橡皮泥plasticine细牙螺纹fine threads销pin消耗consumption小齿轮pinion小径minor diameter橡胶弹簧balata spring修正梯形加速度运动规律modified trapezoidal acceleration motion 修正正弦加速度运动规律modified sine acceleration motion斜齿圆柱齿轮helical gear斜键、钩头楔键taper key泄漏leakage谐波齿轮harmonic gear谐波传动harmonic driving谐波发生器harmonic generator斜齿轮的当量直齿轮equivalent spur gear of the helical gear心轴spindle行程速度变化系数coefficient of travel speed variation行程速比系数advance-to return-time ratio行星齿轮装置planetary transmission行星轮planet gear行星轮变速装置planetary speed changing devices行星轮系planetary gear train形封闭凸轮机构positive-drive (or form-closed) cam mechanism 虚拟现实virtual reality虚拟现实技术virtual reality technology, VRT虚拟现实设计virtual reality design, VRD虚约束redundant (or passive) constraint许用不平稳量allowable amount of unbalance许用压力角allowable pressure angle许用应力allowable stress; permissible stress悬臂结构cantilever structure悬臂梁cantilever beam循环功率流circulating power load旋转力矩running torque旋转式密封rotating seal旋转运动rotary motion选型type selection压力pressure压力中心center of pressure压缩机compressor压应力compressive stress压力角pressure angle牙嵌式联轴器jaw (teeth) positive-contact coupling雅可比矩阵Jacobi matrix摇杆rocker液力传动hydrodynamic drive液力耦合器hydraulic couplers液体弹簧liquid spring液压无级变速hydraulic stepless speed changes液压机构hydraulic mechanism一样化运动链generalized kinematic chain移动从动件reciprocating follower移动副prismatic pair, sliding pair移动关节prismatic joint移动凸轮wedge cam盈亏功increment or decrement work应力幅stress amplitude应力集中stress concentration应力集中系数factor of stress concentration应力图stress diagram应力—应变图stress-strain diagram优化设计optimal design油杯oil bottle油壶oil can油沟密封oily ditch seal有害阻力useless resistance有益阻力useful resistance有效拉力effective tension有效圆周力effective circle force有害阻力detrimental resistance余弦加速度运动cosine acceleration (or simple harmonic) motion 预紧力preload原动机primer mover圆带round belt圆带传动round belt drive圆弧齿厚circular thickness圆弧圆柱蜗杆hollow flank worm圆角半径fillet radius圆盘摩擦离合器disc friction clutch圆盘制动器disc brake原动机prime mover原始机构original mechanism圆形齿轮circular gear圆柱滚子cylindrical roller圆柱滚子轴承cylindrical roller bearing圆柱副cylindric pair圆柱式凸轮步进运动机构barrel (cylindric) cam圆柱螺旋拉伸弹簧cylindroid helical-coil extension spring圆柱螺旋扭转弹簧cylindroid helical-coil torsion spring圆柱螺旋压缩弹簧cylindroid helical-coil compression spring 圆柱凸轮cylindrical cam圆柱蜗杆cylindrical worm圆柱坐标操作器cylindrical coordinate manipulator圆锥螺旋扭转弹簧conoid helical-coil compression spring圆锥滚子tapered roller圆锥滚子轴承tapered roller bearing圆锥齿轮机构bevel gears圆锥角cone angle原动件driving link约束constraint约束条件constraint condition约束反力constraining force跃度jerk跃度曲线jerk diagram运动倒置kinematic inversion运动方案设计kinematic precept design运动分析kinematic analysis运动副kinematic pair运动构件moving link运动简图kinematic sketch运动链kinematic chain运动失真undercutting运动设计kinematic design运动周期cycle of motion运动综合kinematic synthesis运转不平均系数coefficient of velocity fluctuation运动粘度kenematic viscosity载荷load载荷—变形曲线load—deformation curve载荷—变形图load—deformation diagram窄V 带narrow V belt毡圈密封felt ring seal展成法generating张紧力tension张紧轮tension pulley振动vibration振动力矩shaking couple振动频率frequency of vibration振幅amplitude of vibration正切机构tangent mechanism正向运动学direct (forward) kinematics正弦机构sine generator, scotch yoke织布机loom正应力、法向应力normal stress制动器brake直齿圆柱齿轮spur gear直齿锥齿轮straight bevel gear直角三角形right triangle直角坐标操作器Cartesian coordinate manipulator 直径系数diametral quotient直径系列diameter series直廓环面蜗杆hindley worm直线运动linear motion直轴straight shaft质量mass质心center of mass执行构件executive link; working link质径积mass-radius product智能化设计intelligent design, ID中间平面mid-plane中心距center distance中心距变动center distance change中心轮central gear中径mean diameter终止啮合点final contact, end of contact周节pitch周期性速度波动periodic speed fluctuation周转轮系epicyclic gear train肘形机构toggle mechanism轴shaft轴承盖bearing cup轴承合金bearing alloy轴承座bearing block轴承高度bearing height轴承宽度bearing width轴承内径bearing bore diameter轴承寿命bearing life轴承套圈bearing ring轴承外径bearing outside diameter轴颈journal轴瓦、轴承衬bearing bush轴端挡圈shaft end ring轴环shaft collar轴肩shaft shoulder轴角shaft angle轴向axial direction轴向齿廓axial tooth profile轴向当量动载荷dynamic equivalent axial load轴向当量静载荷static equivalent axial load轴向差不多额定动载荷basic dynamic axial load rating轴向差不多额定静载荷basic static axial load rating轴向接触轴承axial contact bearing轴向平面axial plane轴向游隙axial internal clearance轴向载荷axial load轴向载荷系数axial load factor轴向分力axial thrust load主动件driving link主动齿轮driving gear主动带轮driving pulley转动导杆机构whitworth mechanism转动副revolute (turning) pair转速swiveling speed ; rotating speed转动关节revolute joint转轴revolving shaft转子rotor转子平稳balance of rotor装配条件assembly condition锥齿轮bevel gear锥顶common apex of cone锥距cone distance锥轮bevel pulley; bevel wheel锥齿轮的当量直齿轮equivalent spur gear of the bevel gear 锥面包络圆柱蜗杆milled helicoids worm准双曲面齿轮hypoid gear子程序subroutine子机构sub-mechanism自动化automation自锁self-locking自锁条件condition of self-locking自由度degree of freedom, mobility总重合度total contact ratio总反力resultant force总效率combined efficiency; overall efficiency组成原理theory of constitution组合齿形composite tooth form组合安装stack mounting组合机构combined mechanism阻抗力resistance最大盈亏功maximum difference work between plus and minus work 纵向重合度overlap contact ratio纵坐标ordinate组合机构combined mechanism最少齿数minimum teeth number最小向径minimum radius作用力applied force坐标系coordinate frame。