专业涂料产品英文翻译
PCB专业术语中英文翻译【VIP专享】
PCB 专业术语中英文翻译 很多PCB 的书上使用的是英文，但是大多数的人又看不懂英文， 这时候怎么办呢，我们需要翻译，但是如果每看到一个不会的词 儿就去翻译，那么就太耗费时间了，所以我们捷多邦总结了一些 常用的专业术语的中英文对照，希望能对大家有用。 1.印制电路：printed circuit 2.印制线路：printed wiring 3.印制板：printed board 4.印制板电路：printed circuit board (pcb) 5.印制线路板：printed wiring board(pwb) 6.印制元件：printed component 7.印制接点：printed contact 8.印制板装配：printed board assembly 9.板：board 1 10.表面层合电路板：surface laminar circuit (slc) 11.埋入凸块连印制板：b2it printed board 12.多层膜基板：multi-layered film substrate(mfs) 13.层间全内导通多层印制板：alivh multilayer printed board 14.载芯片板：chip on board (cob) 15.埋电阻板：buried resistance board 16.母板：mother board 17.单面印制板：single-sided printed board(ssb) 、管路敷设技术通过管线不仅可以解决吊顶层配置不规范高中资料试卷问题，而且可保障各类管路习题到位。在管路敷设过程中，要加强看护关于管路高中资料试卷连接管口处理高中资料试卷弯扁度固定盒位置保护层防腐跨接地线弯曲半径标等，要求技术交底。管线敷设技术中包含线槽、管架等多项方式，为解决高中语文电气课件中管壁薄、接口不严等问题，合理利用管线敷设技术。线缆敷设原则：在分线盒处，当不同电压回路交叉时，应采用金属隔板进行隔开处理；同一线槽内强电回路须同时切断习题电源，线缆敷设完毕，要进行检查和检测处理。、电气课件中调试对全部高中资料试卷电气设备，在安装过程中以及安装结束后进行 高中资料试卷调整试验；通电检查所有设备高中资料试卷相互作用与相互关系，根据生产工艺高中资料试卷要求，对电气设备进行空载与带负荷下高中资料试卷调控试验；对设备进行调整使其在正常工况下与过度工作下都可以正常工作；对于继电保护进行整核对定值，审核与校对图纸，编写复杂设备与装置高中资料试卷调试方案，编写重要设备高中资料试卷试验方案以及系统启动方案；对整套启动过程中高中资料试卷电气设备进行调试工作并且进行过关运行高中资料试卷技术指导。对于调试过程中高中资料试卷技术问题，作为调试人员，需要在事前掌握图纸资料、设备制造厂家出具高中资料试卷试验报告与相关技术资料，并且了解现场设备高中资料试卷布置情况与有关高中资料试卷电气系统接线等情况 ，然后根据规范与规程规定，制定设备调试高中资料试、电气设备调试高中资料试卷技术电力保护装置调试技术，电力保护高中资料试卷配置技术是指机组在进行继电保护高中资料试卷总体配置时，需要在最大限度内来确保机组高中资料试卷安全，并且尽可能地缩小故障高中资料试卷破坏范围，或者对某些异常高中资料试卷工况进行自动处理，尤其要避免错误高中资料试卷保护装置动作，并且拒绝动作，来避免不必要高中资料试卷突然停机。因此，电力高中资料试卷保护装置调试技术，要求电力保护装置做到准确灵活。对于差动保护装置高中资料试卷调试技术是指发电机一变压器组在发生内部故障时，需要进行外部电源高中资料试卷切除从而采用高中资料试卷主要保护装置。
冲压模具专业词汇中英文翻译
Counter bored hole 沉孔 Chamfer 倒斜角 Fillet 倒圆角 padding block垫块 stepping bar垫条 upper die base上模座 lower die base下模座 upper supporting blank上承板 upper padding plate blank上垫板 spare dies模具备品 spring 弹簧 bolt螺栓 document folder活页夹 file folder资料夹 to put file in order整理资料 spare tools location手工备品仓 first count初盘人 first check初盘复棹人 second count 复盘人 second check复盘复核人 equipment设备 waste materials废料 work in progress product在制品 casing = containerization装箱 quantity of physical inventory second count 复盘点数量 Quantity of customs count 会计师盘,点数量 the first page第一联 filed by accounting department for reference会计部存查 end-user/using unit(department)使用单位 Summary of year-end physical inventory bills 年终盘点截止单据汇总表 bill name单据名称 This sheet and physical inventory list will be sent to accounting department together (Those of NHK will be sent to financial department) 本表请与盘点清册一起送会计部－(NHK厂区送财会部) Application status records of year-end physical inventory List and physical inventory card 年终盘点卡与清册使用－状况明细表 blank and waste sheet NO. 空白与作废单号
机械专业术语英文翻译
陶瓷 ceramics 合成纤维 synthetic fibre 电化学腐蚀 electrochemical corrosion 车架 automotive chassis 悬架 suspension 转向器 redirector 变速器 speed changer 板料冲压 sheet metal parts 孔加工 spot facing machining 车间 workshop 工程技术人员 engineer 气动夹紧 pneuma lock 数学模型 mathematical model 画法几何 descriptive geometry 机械制图 Mechanical drawing 投影 projection 视图 view 剖视图 profile chart 标准件 standard component 零件图 part drawing 装配图 assembly drawing 尺寸标注 size marking
技术要求 technical requirements 刚度 rigidity 内力 internal force 位移 displacement 截面 section 疲劳极限 fatigue limit 断裂 fracture 塑性变形 plastic distortion 脆性材料 brittleness material 刚度准则 rigidity criterion 垫圈 washer 垫片 spacer 直齿圆柱齿轮 straight toothed spur gear 斜齿圆柱齿轮 helical-spur gear 直齿锥齿轮 straight bevel gear 运动简图 kinematic sketch 齿轮齿条 pinion and rack 蜗杆蜗轮 worm and worm gear 虚约束 passive constraint 曲柄 crank 摇杆 racker 凸轮 cams
常用专业术语翻译
1.素质教育：Quality Education 2. EQ：分两种，一种为教育商数Educational quotient，另一种情感商数Emotional quotient 3. 保险业：the insurance industry 4. 保证重点指出：ensure funding for priority areas 5. 补发拖欠的养老金：clear up pension payments in arrears 6. 不良贷款：non-performing loan 7. 层层转包和违法分包：mutlti-level contracting and illegal subcontracting 8. 城乡信用社：credit cooperative in both urban and rural areas 9. 城镇居民最低生活保障：a minimum standard of living for city residents 10. 城镇职工医疗保障制度：the system of medical insurance for urban workers 11. 出口信贷：export credit 12. 贷款质量：loan quality 13. 贷款质量五级分类办法：the five-category assets classification for bank loans 14. 防范和化解金融风险：take precautions against and reduce financial risks 15. 防洪工程：flood-prevention project 16. 非法外汇交易：illegal foreign exchange transaction 17. 非贸易收汇：foreign exchange earnings through nontrade channels 18. 非银行金融机构：non-bank financial institutions 19. 费改税：transform administrative fees into taxes 20. 跟踪审计：foolow-up auditing 21. 工程监理制度：the monitoring system for projects 22. 国有资产安全：the safety of state-owned assets 23. 过度开垦：excess reclamation 24. 合同管理制度：the contract system for governing projects 25. 积极的财政政策：pro-active fiscal policy 26. 基本生活费：basic allowance 27. 解除劳动关系：sever labor relation 28. 金融监管责任制：the responsibility system for financial supervision 29. 经济安全：economic security 30. 靠扩大财政赤字搞建设：to increase the deficit to spend more on development 31. 扩大国内需求：the expansion of domestic demand 32. 拉动经济增长：fuel economic growth 33. 粮食仓库：grain depot 34. 粮食收购企业：grain collection and storage enterprise 35. 粮食收购资金实行封闭运行：closed operation of grain purchase funds 36. 粮食销售市场：grain sales market 37. 劣质工程：shoddy engineering
钢结构英文翻译对照
Steel structure 面积：area 结构形式：framework 坡度：slope 跨度：span 柱距：bay spacing 檐高：eave height 屋面板：roof system 墙面板：wall system 梁底净高: clean height 屋面系统: roof cladding 招标文件: tender doc 建筑结构结构可靠度设计统一标准: unified standard for designing of architecture construction reliablity 建筑结构荷载设计规范: load design standard for architecture construction 建筑抗震设计规范: anti-seismic design standard for architecture 钢结构设计规范: steel structure design standard 冷弯薄壁型钢结构技术规范: technical standard for cold bend and thick steel structure 门式钢架轻型房屋钢结构技术规范: technical specification for steel structure of light weight building with gabled frames 钢结构焊接规程: welding specification for steel structure 钢结构工程施工及验收规范: checking standard for constructing and checking of steel structure 压型金属板设计施工规程: design and construction specification for steel panel 荷载条件：load condition 屋面活荷载：live load on roof 屋面悬挂荷载：suspended load in roof 风荷载：wind load 雪荷载：snow load 抗震等级：seismic load 变形控制：deflect control 柱间支撑X撑：X bracing 主结构：primary structure 钢架梁柱、端墙柱: frame beam, frame column, and end-wall column 钢材牌号为Q345或相当牌号，大型钢厂出品：Q345 or equivalent, from the major steel mill 表面处理：抛丸除锈Sa2.5级，环氧富锌漆，两底两面，总厚度为125UM。表面喷涂防火材料，防火等级为：柱2小时，梁1.5小时 surface treatment: shot blasting to Sa2.5,zinc rich epoxy paint. 2primer paint and 2 finish paint .total dry film thickness 125um. Spraying fireproof painting on surface, for column 2hours and beam 1.5hours. 次结构包括：屋面檩条、围梁、门窗开口加强等，工厂轧制成C型、Z型截面，工厂预冲孔。Secondary structure included purlins, girts, roof opening and wall opening reinforcement, prepunched and rolled to C or Z section on factory machine. 材质：热浸镀锌卷材，Q345或相当牌号，大型钢厂出品或进口。Material : hot-dipped galvanized steel coil, Q345 or equivalent, from the major domestic steel mills or imported.
(机械制造行业)机械英文翻译
英文翻译 机械设计 一台完整机器的设计是一个复杂的过程。机械设计是一项创造性的工作。设计工程师不仅在工作上要有创造性，还必须在机械制图、运动学、工程材料、材料力学和机械制造工艺学等方面具有深厚的基础知识。 Machine Design The complete design of a machine is a complex process. The machine design is a creative work. Project engineer not only must have the creativity in the work, but also must in aspect and so on mechanical drawing, kinematics, engineerig material, materials mechanics and machine manufacture technology has the deep elementary knowledge. 任何产品在设计时第一步就是选择产品每个部分的构成材料。许多的材料被今天的设计师所使用。对产品的功能，它的外观、材料的成本、制造的成本作出必要的选择是十分重要的。对材料的特性必须事先作出仔细的评估。 One of the first steps in the design of any product is to select the material from which each part is to be made. Numerous materials are available to today's designers. The function of the product, its appearance, the cost of the material, and the cost of fabrication are important in making a selection. A careful evaluation of the properties of a. material must be made prior to any calculations. 仔细精确的计算是必要的，以确保设计的有效性。在任何失败的情况下，最好知道在最初设计中有有缺陷的部件。计算（图纸尺寸）检查是非常重要的。一个小数点的位置放错，就可以导致一个本可以完成的项目失败。设计工作的各个方面都应该检查和复查。 Careful calculations are necessary to ensure the validity of a design. In case of any part failures, it is desirable to know what was done in originally designing the defective components. The checking of calculations (and drawing dimensions) is of utmost importance. The misplacement of one decimal point can ruin an otherwise acceptable project. All aspects of design work should be checked and rechecked. 计算机是一种工具，它能够帮助机械设计师减轻繁琐的计算，并对现有数据提供进一步的分析。互动系统基于计算机的能力，已经使计算机辅助设计（CAD）和计算机辅助制造（CAM）成为了可能。心理学家经常谈论如何使人们适应他们所操作的机器。设计人员的基本职责是努力使机器来适应人们。这并不是一项容易的工作，因为实际上并不存在着一个对所有人来说都是最优的操作范围和操作
市场营销专业术语中英文对照标准翻译
市场营销专业术语中英文对照标准翻译 本文为市场营销中经常用到的一些中文与英文互译的标准用语，希望对市场营销从业人员有所帮助。 《财富》杂志Fortune 案头调研Desk Research 奥美公司Ogilvy & Mather 白色商品White Goods 百乐门Parliament 百威啤酒Budweiser 包裹销售法Banded Pack 宝洁公司Procter & Gamble 宝丽来Polaroid 宝马BMW 边际成本Marginal Cost 边际收益Marginal Benefit 标准差，均差Standard Deviation 别克Buick 波立兹调查公司Alfred Politz Research, Inc 波旁王朝Ancient Age Bourbon 波特福洛分析Portefolio Analysis 产品差异Product Differentiation 产品生命周期Product Life Cycle 产品系列Product Line 产品组合Product Mix 阐述Presentation 超级市场Supermarket 成对比较法Paired Comparisons 成功的理想主义者Successful Idealist 承诺型消费者Committed Buyer 程度测试Tachistoscope 橙色商品Orange Goods 冲动购买Impulse Buying 重叠率Duplication 抽样Sampling 传销Pyramid Selling 传阅发行量Pass-on Circulation 词语联想法Word Associaton 刺激营销Incentive Marketing 促销Promotion 达彼思广告公司Ted Bates & Copany 大卫·奥格威David Ogilvy 戴比尔斯De Beers
冲压模具专业词汇中英文翻译
冲压模具词汇 Counter bored hole 沉孔 Chamfer 倒斜角 Fillet 倒圆角 padding block垫块 stepping bar垫条 upper die base上模座 lower die base下模座 upper supporting blank上承板 upper padding plate blank上垫板 spare dies模具备品 spring 弹簧 bolt螺栓 document folder活页夹 file folder资料夹 to put file in order整理资料 spare tools location手工备品仓 first count初盘人 first check初盘复棹人 second count 复盘人 second check复盘复核人 equipment设备 waste materials废料 work in progress product在制品 casing = containerization装箱 quantity of physical inventory second count 复盘点数量 Quantity of customs count 会计师盘,点数量 the first page第一联 filed by accounting department for reference会计部存查 end-user/using unit(department)使用单位 Summary of year-end physical inventory bills 年终盘点截止单据汇总表 bill name单据名称 This sheet and physical inventory list will be sent to accounting department together (Those of NHK will be sent to financial department) 本表请与盘点清册一起送会计部－(NHK厂区送财会部) Application status records of year-end physical inventory List and physical inventory card 年终盘点卡与清册使用－状况明细表
机械专业外文翻译(中英文翻译)
外文翻译 英文原文 Belt Conveying Systems Development of driving system Among the methods of material conveying employed，belt conveyors play a very important part in the reliable carrying of material over long distances at competitive cost．Conveyor systems have become larger and more complex and drive systems have also been going through a process of evolution and will continue to do so．Nowadays，bigger belts require more power and have brought the need for larger individual drives as well as multiple drives such as 3 drives of 750 kW for one belt(this is the case for the conveyor drives in Chengzhuang Mine)．The ability to control drive acceleration torque is critical to belt conveyors’performance．An efficient drive system should be able to provide smooth，soft starts while maintaining belt tensions within the specified safe limits．For load sharing on multiple drives．torque and speed control are also important considerations in the drive system’s design. Due to the advances in conveyor drive control technology，at present many more reliable．Cost-effective and performance-driven conveyor drive systems covering a wide range of power are available for customers’ choices[1]. 1 Analysis on conveyor drive technologies 1．1 Direct drives Full-voltage starters．With a full-voltage starter design，the conveyor head shaft is direct-coupled to the motor through the gear drive．Direct full-voltage starters are adequate for relatively low-power, simple-profile conveyors．With direct fu11-voltage starters．no control is provided for various conveyor loads and．depending on the ratio between fu11-and no-1oad power requirements，empty starting times can be three or four times faster than full load．The maintenance-free starting system is simple，low-cost and very reliable．However, they cannot control starting torque and maximum stall torque；therefore．they are
钢结构术语中英文对照
钢结构术语中英文对照 强度strength 承载能力load-carrying capacity 脆断brittle fracture 强度标准值characteristic value of strength 强度设计值design value of strength 一阶弹性分析first order elastic analysis 阶弹性分析second order elastic analysis 屈曲buckling 腹板屈曲后强度post-buckling strength of web plate 通用高厚normalizde web slenderness 整体稳定overall stability 有效宽度effective width 有效宽度系数effective width factor 长细比slenderness ratio 换算长细比equivalent slenderness ratio 支撑力nodal bracing force 无支撑纯框架unbraced frame 强支撑框架frame braced with strong bracing system 弱支撑框架frame braced with weak bracing system 摇摆柱leaning column 柱腹板节点域panel zone of column web 球形钢支座spherical steel bearing 橡胶支座couposite rubber and steel support 主管chord member 支管bracing member 隙节点gap joint 搭接节点overlap joint 平面管节点uniplanar joint 空间管节点multiplanar joint 组合构件built-up member 钢与混凝土组合梁composite steel and concrete beam A acceptable quality 合格质量 acceptance lot 验收批量 aciera 钢材 against slip coefficient between frictionsurface of high-strength bolted connection 高强度螺栓摩擦面抗滑移系数 allowable ratio of height to sectionalthickness of masonry wall or column 砌体墙、柱容许高厚比 allowable slenderness ratio of steel member 钢构件容许长细比
机械专业相关词汇中英文翻译大全
机械专业相关词汇中英文翻译大全 单价unit price 工日合计Man-day total/work-day total 人工费cost of labor 材料费materials expenses 机械的mechanical 检查接线connection test 发电机generator 调相机phase regulator 周波cycle 减负荷装置 load-shedding equipment 断路器柜circuit breaker cabinet 单母线single busbar 互感器transformer 每相电流Current by Phase 封闭式插接close type socket joint 发电机控制面板generator control panel 分级卸载sorted unloading 同步控制synchronization control 调速器 speed governor 信号屏signal screen 继电器relay 高压柜high pressure cabinet 油浸电力变压器oil-immersed power transformer 空气断路器air circuit breaker 控制屏control panel 直流馈电屏direct current feed control panel 电容器electric condenser 计量盘metering panel 成套配电箱whole set of distribution box 落地式floor model 控制开关Control switches 铜芯电力电缆Copper core power cable 控制电缆actuating cable 热缩式电力电缆终端头pyrocondensation power cable terminal 钢结构支架配管steel structure bracket tubing 万用槽钢versatile U-steel 电缆托架 cable bracket 钢制托盘式桥架steel Tray-type cable support system waterproof socket 防水插座 防爆插座Explosion-proof socket 接地绞线earthing twisted pair 接地母线 earthing bus
专业名词对应英文翻译
预约券reservation ticket 下午茶high tea 微博Microblog/ Tweets 裸婚naked wedding 亚健康sub-health 平角裤boxers 愤青young cynic 灵魂伴侣soul mate 小白脸toy boy 精神出轨soul infidelity 人肉搜索flesh search 剩女3S lady（single，seventies,stuck）/left girls 山寨copycat 异地恋long-distance relationship 性感妈妈yummy mummy 钻石王老五diamond bachelor 时尚达人fashion icon 上相的,上镜头的photogenic 学术界academic circle 哈证族certificate maniac 偶像派idol type 住房公积金housing funds 熟女cougar（源自电影Cougar Club） 挑食者picky-eater 伪球迷fake fans 紧身服straitjacket 团购group buying 奉子成婚shotgun marriage 婚前性行为premarital sex 炫富flaunt wealth 决堤breaching of the dike 上市list share 赌球soccer gambling 桑拿天sauna weather 自杀Dutch act 假发票fake invoice 金砖四国BRIC countries 笑料laughing stock 泰国香米Thai fragrant rice 学历造假fabricate academic credentials 泄洪release flood waters 狂热的gaga eg: I was gaga over his deep blue eyes when I first set eyes on him 防暑降温补贴high temperature subsidy 暗淡前景bleak prospects
钢铁术语译文
钢铁术语译文 A R steel 高温度锰钢 abnormal steel 反常钢; 非正常钢 aluminium-steel cable 钢铝电缆 aluminized steel 涂铝钢 aluminum nickel steel 铝镍钢 anchored steel trestle 锚固式钢栈桥 angle steel ruler 钢角尺 anisotropic steel 各向异性钢片 anisotropy silicon steel 各向异性硅钢片 annealed sheet steel 退火薄钢板 annealed steel 退火钢; 韧钢 anti-creeping angle steel 防爬角铁 anticorrosive aluminium-coated steel wire 防蚀镀铝钢丝arc-furnace steel 电炉钢 arc-welded steel pipe 电弧焊接钢管 area of steel 钢筋断面面积; 钢筋截面面积 area of structural steel 型钢截面积 Armco aluminized steel 阿姆柯渗铝钢 armco aluminized steel 表面浸镀铝钢 Armco stabilized steel 阿母柯稳定化钢 Armco steel 阿姆柯软钢
armco steel 不硬化钢 austenilic Ni-Cr stainless steel 奥氏体镍铬不锈钢austenitic alloy steel 奥氏体合金钢 austenitic chromium-nickel steel 奥氏体铬-镍钢austenitic clad steel 奥氏体复合钢 austenitic heat-resistance steel 奥氏体耐热钢austenitic manganese steel 奥氏体锰钢; 哈德菲尔德锰钢austenitic stainless steel 奥氏体不锈钢 austenitic steel 奥氏体钢 automatic steel 易切削钢 automatic(al) steel 易切削钢 axle shaft steel 车轴钢 axle steel 车轴钢 bainitic steel 贝氏体钢 balanced steel 半镇静钢 ball bearing steel strip 滚珠轴承钢带 ball race steel 滚珠轴承圈钢 ball-bearing steel 滚珠轴承钢 bamboo steel 竹节钢筋 band steel 带钢 banding steel 带钢; 箍钢 bar steel 棒钢; 条钢
机械专业英文翻译
机械专业英文翻译 Company number：【WTUT-WT88Y-W8BBGB-BWYTT-19998】
启动轴 starting axle 启动齿轮starting gear 启动棘轮 starting ratchet wheel 复位弹簧 restoring, pull back spring 弹簧座 spring seating 摩擦簧friction spring 推力垫圈 thrust washer 轴挡圈axle bumper ring 下料 filling 切断 cut 滚齿机 gear-hobbing machine 剪料机 material-shearing machine 车床 lathe 拉床 broaching machine 垂直度 verticality, vertical extent 平行度 parallelism同 心度 homocentricity 位置度 position 拉伤 pulling damage 碰伤 bumping damage 缺陷 deficiency 严重缺陷 severe deficiency 摩擦力 friction 扭距 twist 滑动 glide 滚动 roll 打滑 skid 脱不开 can’t seperate 不复位 can’t restore 直径 diameter M值 = 跨棒距 test rod span 公法线 common normal line 弹性 elasticity 频率特性 frequency characteristic 误差 error 响应 response 定位 allocation 机床夹具 jig 动力学 dynamic 运动学 kinematic 静力学 static 分析力学 analyse mechanics 拉伸 pulling 压缩 hitting 机床 machine tool 刀具 cutter 摩擦 friction 联结 link 传动 drive/transmission 轴 shaft 剪切 shear 扭转 twist 弯曲应力 bending stress 三相交流电 three-phase AC 磁路 magnetic circles 变压器 transformer 异步电动机 asynchronous motor 几何形状 geometrical 精度 precision 正弦形的 sinusoid 交流电路 AC circuit 机械加工余量 machining allowance 变形力 deforming force 变形 deformation 电路 circuit 半导体元件 semiconductor element 拉孔 broaching 装配 assembling 加工 machining 液压 hydraulic pressure 切线 tangent 机电一体化 mechanotronics mechanical-electrical integration 稳定性 stability 介质 medium 液压驱动泵 fluid clutch 液压泵 hydraulic pump 阀门 valve 失效 invalidation 强度 intensity 载荷 load 应力 stress 安全系数 safty factor 可靠性 reliability 螺纹 thread 螺旋 helix 键 spline 销 pin 滚动轴承 rolling bearing 滑动轴承 sliding bearing 弹簧 spring 制动器 arrester brake 十字结联轴节 crosshead 联轴器 coupling 链 chain 皮带 strap 精加工 finish machining 粗加工 rough machining 变速箱体 gearbox casing 腐蚀 rust 氧化 oxidation 磨损 wear 耐用度 durability 机械制图 Mechanical drawing 投影 projection 视图 view 剖视图 profile chart 标准件 standard component 零件图 part drawing 装配图 assembly drawing 尺寸标注 size marking 技术要求 technical requirements 刚度 rigidity 内力 internal force 位移 displacement 截面 section 疲劳极限 fatigue limit 断裂 fracture 塑性变形 plastic distortion 脆性材料 brittleness material 刚度准则 rigidity criterion 垫圈 washer 垫片 spacer 直齿圆柱齿轮 straight toothed spur gear 斜齿圆柱齿轮 helical-spur gear 直齿锥齿轮 straight bevel gear 运动简图 kinematic sketch 齿轮齿条 pinion and rack 蜗杆蜗轮 worm and worm gear 虚约束 passive constraint 曲柄 crank 摇杆 racker 凸轮 cams 反馈 feedback 发生器 generator