高等教育出版社机电英语课件 Unit 9 Numerical Control
• provide a reference set • 作为参考组 • voice commands given during actual programming • 在实际编程时（系统）给出的语音指令
• 第三段短语： • isolate each word by pausing before and after the word • 通过词前词后的停顿来隔离每个词 • one-tenth of a second • 1/10秒 • the speech recognition system • 语音识别系统 • identify boundaries for the uttered command • 识别发出语音指令的界线
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a CRT terminal 阴极射线管（显示器）终端 verify 验证 prompt 提示
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第四段短语： defining a circle 定义一个圆 definition n. 定义 center err 中心数据错误 five decimal three X=5.3 CW/CCW＝clockwise/counterclockwise 顺时针/逆时针
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manual verification 人工验证 specializing in voice-input system 专业研发语音输入系统 Threshold Technology, Inc. Inc.=incorporation 公司 斯莱肖德技术有限公司
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第二段短语： a headband microphone 头戴式话筒 reduce background acoustical noise 减少背景噪音 be in shop language 用行话 dimensional and coordinate data 尺寸和坐标数据 recognize and accept the individual programmer’s voice pattern • 识别和接受编程员的声音模式
广东科技学院《机电英语》课件
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Part 1 第一段短语： voice NC programming 语音数控编程 the machining procedure 机械加工过程 a voice-input NC tape-preparation system • 语音输入数控磁带准备系统 • keypunching or typing • 键盘输入或打字
• wave charactቤተ መጻሕፍቲ ባይዱristics • 波形特性 • words in the reference set for that programmer • 编程者参考组中的词 • typical word input rates • 典型的单词输入率 • under this restriction • 在这种限制下 • be claimed • 据说
• 第五段短语： • prepares the punched tape for the job • 准备好穿孔磁带以备工作
• 第六段短语： • led principally in the savings in programming time • 主要在于节省编程时间 • resulting improvements in manufacturing lead time • 由此缩短产品设计至实际投产时间 • improvements in accuracy • 准确率的提高 • lower computer-skill requirement for the programmer • 对编程者计算机技能要求低
机械英语综合教程Lesson 9 CNC and CNC Machine Tools
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CNC and CNC Machine Tools
What is Commuter Numerical Control, or CNC? Simply put, Computer Numerical Control is the automated control of machine tools by a computer and computer program. In other words, a computer rather than a person will directly control the machine tool. The axial movements of CNC machine tools are guided by a computer, which reads a program and instructs several motors to move in the appropriate manner. The motors in turn cause the table to move and produce the machined part. Before Computer Numerical Control (CNC), the motions of machine tool had to be controlled manually or mechanically (such as with cams or tracer systems). Today, conventional machine tools have been largely replaced by CNC machine tools. The machines still perform essentially the same functions, but movements of the machine tool are controlled electronically rather than by hand. CNC machine tolls can produce the same parts over and over again with very little variation. They can run day and night, week after week, without getting tired. These are obvious advantages over conventional machine tools, with need a great deal of human interaction in order to do anything. CNC machine tools are highly productive. They are also expensive to purchase, set up, and maintain. However, the productivity advantage can easily offset this cost if their use is properly managed. Operations of CNC machine tools are automatic. CNC machine tools are either through entry on a keypad or by downloading machining instructions that were created by computer-aided engineering software.
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《机电专业英语》 教学课件课件 Unit 24 Flexible Manufacturing
1. Computer control. 2. Automated materials handling capability. 3. Tool handling capability.
Text & Translation
Flexible manufacturing was first introduced in the mid-1960s when the British firm Moils Ltd. developed its System 24. System 24 is a real FMS. However, it was doomed from the outset because automation, integration, and computer control technology had not yet been developed to the point where they could properly support the system. With the emergence of sophisticated computer control technology in the late 1970s and 1980s, flexible manufacturing became a viable concept. In the United States, manufacturers of automobiles, trucks, and tractors are the pioneers in adopting flexible manufacturing.
机械工程英语
机械工程英语一、专业词汇Unit11.arithmetic-logic unit 算术逻辑单元2.process interface devices 处理接口装置3.the digital-to-analog converter 数模转换器4.pseudoanalog signal 伪模拟信号5.contact output interfaces 接触式输出接口6.central processing unit 中央处理器7. readers 读卡器8.binary system 二进制9.decimal number system 十进数制10、Central processing unit(CPU)中央处理系统11、Network protocols网络协议12、World Wide Web万维网13、Hypertext links超文本链接Pump 油泵function 运作manually 人工操作image processing 图像处理 a general–purpose 多功能的Unit21.numerical control 数控2.machine tool 机床3.interpolation 插补4.Positioning/ point-to-point点位控制5.Processing equipment 加工设备6.bulk memory 大容量储存器7.program of instructions 程序指令8.code 编码9、Program of instructions程序指令10、Machine control unit机器控制单元11、Numerical concrol of production equipment数控生产设备12、Nonproductive time辅助时间13、CMC system 电脑数控系统worktable 工作台drilling 钻床milling 铣床Unit31.programming for numerical control 数控编程2.coolant liquid 冷却液3.engineering drawings 工程图纸4.durable mylar 耐磨材料5.Automatically programmed tools( APT )自动编程工具6.maching sequence 机加工顺序7.paper tape 纸带8.debugging 调试9.durable mylar 耐磨聚脂薄膜10.coordinate point 坐标点11、Feeds进给量12、Miscellaneous functions辅助功能Sequence 序列damping 制动work coordinate setting---工作坐标系设定switching command----转换命令trying out----测试Unit41.surface finish 表面粗糙度2.transfer lines 生产线3.dimensional tolerances 尺寸公差4.tapping 攻内螺纹5.threading 攻螺纹6.tool magazine/tooling systems 刀库7.flexibility 柔性8.loading and unloading devices 装卸装置9、Turning centers车削中心10、Tool magaiine多刀刀座11、Memory chips记忆芯片pallet 托盘just-in-time manufacturing及时制造Unit51.hydraulic systems 液压系统2.Open-loop or closed-loop 开环/闭环3.joy-stick 操纵杆4.material-handling 物料处理5.auxiliary operations 辅助操作6.pneumatic systems 气压系统7.teach pendant 示教盒8.Cylindrical robot 圆柱机器人9、Modern industry现代工业10、cartesian robot笛卡尔机器人11、Three-axis三坐标deflection 偏移量industrial robot------工业机器人tolerance----公差assembly----装配Unit61.group technology 成组技术2.work-holding device/ jig or fixture夹具3.nonstandard parts 非标准件4.chamfers 倒角5.design features 设计要素6.departmentalization 划分部门7.international market 国际市场8.reinventing the wheel 重复的工程设计9、ZIP邮政编码10、Cash-flow cycle资金周转11、Design-criented面向设计batch-type 批量12、Manufacturing-oriented面向制造Lead time 交货期integrate 整合routing paths---路径flexible design----柔性设计batch—type production------批量生产standardization of designfeatures----标准设计要素Unit81.flexible manufacturing 柔性制造2.integrated computer control 集成计算机控制3.Cross-section 横截面4.dynamically balance 动态平衡5.coordinate measuring machines 坐标测量仪6.overall control 全局控制7.central chip removal 排屑系统8.traffic management 运输管理9.pallet queuing carrousels 旋转式托盘10.light load vehicles 轻载小车11.cart maintenance station 小车维修站12、Response time反应时间13、Yield sigh让路标志14、Automated guided vehicle(AGV)自动引导小车15、Axial section轴向截面off-center load 重心偏离支点的载荷microelectronics 微电子Unit101.virtual manufacturing 虚拟制造2.feedback 反馈3.manufacturing modeling 建模4.intelligent integrated diagnostics 智能集成化诊断5.integration 一体化6、information technology(IT)信息技术7、Multimedia 多媒体8、Finite dimension有限的9、Information explosion信息爆炸Unit111.rapid prototyping 快速成型2.Stereolithography apparatus 光固化成型机3.galvanometer-driven mirrors 检流计驱动镜4.melting point 熔点5.thermal heating 热熔性6.extrusion head 挤压式喷头7.small batch-size products 小批量生产8.development time 开发时间9.zigzag cutter movement 循环走刀10.parallel cross-section pieces 平行截面件11.manufactur community 制造系统12、Liquid photo-curable resin丙烯酸光敏树脂13、Piston 活塞14、Substantial 牢固的15、Monomers单体16、geometric modeler 几何建模elevator drops 升降台model accuracy 精度thermal heating 热塑性manufacturing technology 制造技术专业词汇二、选择题1.Industrial robot are relatively new﹙C ﹚device that are beginning to change theappearance of modern industryA electrical motorsB hydraulic systemsC electromechanicalD pneumatic systems2.In any discussion of AGVs,three key terms are heard frequently except( D )A guide pathB routingC traffic managementD actual path3.Basically ,an FMS is made up of hardware and software elements ,which of thefo llowing does′t belong to hardware( A )A NC programsB CNC machine toolsC pallet queuing carrouselsD chip removel4.The two most important changes are ( B ) and rapid changes in IT (Information Technology)A electromechanicalB globalizationC multi－varietyD flexibility5.There are several features worthy of mentioning of SLA except( D ).A materialB supportC model accuracyD marketing/doc/bc6878414.html,monly used in ( A ) or mass productionA high－volumeB large－volumeC big－volumeD low－volume7.( A ) part programming involves special symbolicprogramming languages thatdetermine the coordinate point of corners ,edges , and surface of the part.A Computer－aidedB Computer－aidingC Computer aidedD Computer－aiding8.More advanced instructions selection of spindle speeds , ( C ),anotherFunctions.A cutting－toolsB cut－toolsC cutting toolsD cut tools9.The ( B )converter takes digital data generated by the computer and transforms itinto a pseudoanalog signal.A digital to analogB digital－to－analogC digital－to analogD digital to－analog1.The more familiar ______number system and a whole host of software languages can utilize the binary system to permit communication between computers and human beings.(B)A、binaryB、decimalC、octalD、hexadecimal2.The success of the machining center has______ the development of similar machine tools for other metalworkingprocess. (C)A、lead toB、bring aboutC、result inD、case3.The programmer describe the component to be processed in this language ,and the computer _____ it to commands for the NC machine. (B)A、translateB、convertsC、translatesD、interprets4.Machining centers can require significant capital expenditures, so to be cost effective, they generally have to be used for at least two_____ per day. (C)A、alternatesB、transportationC、shiftsD、changes5.In joint interpolation, each of the robot_____ is moved at a constant rate so that all the axes start and stop at the same time.(D)A、handsB、partsC、segmentsD、joints6.Group technology is a manufacturing philosophy that involves indentifying and grouping components having similar or _____attributes in order to take advantage of their similar in the design and/or manufacturing phase of the production cycle.(C)A、differentB、relevantC、relatedD、concerned/doc/bc6878414.html,puter –aided design(CAD) can be_____ as the use of computer systems to assist in the creation, modification, analysis or optimization of a design.(D)A、named asB、viewed asC、regarded asD、defined as8.The_____ of an automated storage and retrieval system is to deliver the right material to the right place at the right time. (A)A、goalB、purposeC、objectiveD、aim9.This ______ is directly viable to be implemented in an object paradigm, and has been successfully used in FMS modeling and control. (A)A、formalismB、systemC、formationD、step10.With RP&M technology, it is possible to go through multiple design iterations within a short time and ________reduce the model development time. (D)A、largelyB、absolutelyC、relativelyD、substantially1:Which is not computer`s programming language?(D)A.Machine languageB. assembly languageC. procedure-orented languageD.Programming control language2:NC is sometimes called”______”(B)A.Intenigence controlB. Tape controlC. Data controlD. Paper control3: Which university developed probably over 100 NC part programming languages?(A)A.MITB. HarvardC. University of OxfordD. University of Cambridge4Which is not used in tools` identification,when attach directly to the tool holders?(D) A: Coded tags B: bar codes C: memory chips D: marks5: Which can not power the robots of NC machines?(C)A: electrical motors B: hydraulic systems C: Compose drive D: pheumatic systems 6:What is used in depart mentelization.When their manufacturing approach mvoiwed group technology?(A) A: produce B: process the ronting paths C: mininzing the routing paths D: profit7: Which is not the key term of AGVs.(B)A: guide path B: programming control C: routing D: traffic management8:What is the global manufacturing based on in the future?(A)A. a gentsB.ITC. InternetD. technology9: Which is not the current dalication of RP/M(D)A.Design engineeringB. ManufacturingC. MarketingD. serviceUnit 1Message to a specific computer are usually transmitted to all computers in the network, __B__ the addresses decoding its address and accepting the information. A. on B. with C. because D whichUnit 2In its most common form, the commands refer to position of a machine tool spindle with respect to the worktable __A__ the part is fixture.A. on whichB. in whichC. whichD. with whichUnit 3Several part programming languages are based __C__ on the APT program. One of these is ADAPT, which was developed by IBM under Air Force Contract.A. reallyB. usuallyC. directlyD. mostlyUnit 4Touch-probes can be __A__ installed into a tool holder to determine reference surface of the workpiece for the selection of tool settings, and for the on-line inspection of parts being machined.A. automaticallyB. directlyC. manuallyD. partlyUnit 5In joint interpolation, each of the robot joints is moved at a constant rate so that all the __C__ start and stop at the same time.A. gearsB. motorsC. axesD. partsUnit 6__A__ is a manufacturing philosophy that involves identifying and grouping components having similar or related attributes in order to take advantage of their similarities in the design and/or manufacturing phases of the production cycle.A. Group technologyB.NC/doc/bc6878414.html,CD. Computer TechnologiesUnit 8Flow to and from the areas that the ASRS is to serve shouldbe kept clean and free ofobstruction and __A__ components.A. waiting to be movedB. wait to be movedC. waiting to be movingD. wait to be movingUnit 10This formalism is directly able to be implemented in an object oriented paradigm, andhas been successfully used __A__ FMS modeling and control.A. inB. toC. ofD. onUnit 11A layer of powder is spread on the top of the piston, the powder bed, in a cylinder, andthen an ink-jet printing bead projects of binder material onto the powder at the place__A__ the solidification is required according to the information from the computermodel.A. whereB. thatC. whichD. what1.Industrial robot are relatively new﹙C ﹚device that are beginning to change theappearance of modern industryA electrical motorsB hydraulic systemsC electromechanicalD pneumatic systems2.In any discussion of AGVs,three key terms are heard frequently except( D )A guide pathB routingC traffic managementD actual path3.Basically ,an FMS is made up of hardware and software elements ,which of thefollowing does′t belong to hardware( A )A NC programsB CNC machine toolsC pallet queuing carrouselsD chip removel4.The two most important changes are ( B ) and rapid changes in IT (Information Technology)A electromechanicalB globalizationC multi－varietyD flexibility5.There are several features worthy of mentioning of SLA except( D ).A materialB supportC model accuracyD marketing/doc/bc6878414.html,monly used in ( A ) or mass productionA high－volumeB large－volumeC big－volumeD low－volume7.( A ) part programming involves special symbolic programming languages thatdetermine the coordinate point of corners ,edges , and surface of the part.A Computer－aidedB Computer－aidingC Computer aidedD Computer－aiding8.More advanced instructions selection of spindle speeds , ( C ),anotherFunctions.A cutting－toolsB cut－toolsC cutting toolsD cut tools9.The ( B )converter takes digital data generated by the computer and transforms it into a pseudoanalog signal.A digital to analogB digital－to－analogC digital－to analogD digital to－analog1、The more familiar ______number system and a whole host of software languages can utilize the binary system to permit communication between computers and human beings.(B)A、binaryB、decimalC、octalD、hexadecimal2、The success of the machining center has______ the development of similar machine tools for other metalworking process. (C)A、lead toB、bring aboutC、result inD、case3、The programmer describe the component to be processed in this language ,and the computer _____ it to commands for the NC machine. (B)A、translateB、convertsC、translatesD、interprets4、Machining centers can require significant capital expenditures, so to be cost effective, they generally have to be used for at least two_____ per day. (C)A、alternatesB、transportationC、shiftsD、changes5、In joint interpolation, each of the robot_____ is moved ata constant rate so that all the axes start and stop at the same time. (D)A、handsB、partsC、segmentsD、joints6、Group technology is a manufacturing philosophy that involves indentifying and grouping components having similar or _____attributes in order to take advantage of their similar in the design and/or manufacturing phase of the production cycle. (C)A、differentB、relevantC、relatedD、concerned7、Computer –aided design(CAD) can be_____ as the use of computer systems to assist in the creation, modification, analysis or optimization of a design. (D)A、named asB、viewed asC、regarded asD、defined as8、The_____ of an automated storage and retrieval system is to deliver the right material to the right place at the right time.(A)A、goalB、purposeC、objectiveD、aim9、This ______ is directly viable to be implemented in an object paradigm, and has been successfully used in FMS modeling and control. (A)A、formalismB、systemC、formationD、step10、With RP&M technology, it is possible to go through multiple design iterations within a short time and ________reduce the model development time. (D)A、largelyB、absolutelyC、relativelyD、substantially三、填空题1.The memory of the computer is the___ unit.(storage)P922.The ___ that computers can understand are called machinelanguage.(binary-coded instructions)P933.The ___ control unit (MCU) consists of the electronics and controlhardware..(machine)P1024.Machining centers are classified as vertical or ___.(horizontal)P1055.Processing instructions pertain to ___ feeds,tools,and so on..(spindle speeds)P1106.Programming language is the means of communicating with the computer andinvolves the use of ___.(symbolic characters)P1107.Machining and turning centers have ___ and versatility that other machine toolsdo not have.(flexibility)P1168.The ___ is on the left of the figure and an operations and movements are directedand modified through the computer-control panel on the right.(tool magazine)P1209. A robot whose main frame sonsists of ___ is called aCartesian robot.(three linearaxes)P12410.Nonprogrammable ___,regardless of their potential flexibility by reassembly orrewiring do not be qualified as robots.(mechanisms)P12611.Batch-type production involves a wide variety of ___ parts,seemingly withnothing in common.(nonstandard)P13212.FMS is a randomly loaded ___ system.(automated)P15113.Knowledge is power and IT is facilitating the storing.___ and transmission ofknowledge.(Processing)P16814.Improving ___ is always an important issue of manufacturing,(productquality)P177Unit1:1、This communication is accomplished through peripheral equipment such asreaders, printers, and process interface devices.2、The software consists of the programs and instructions stored in memory and inexternal storage units.Unit2:1、The program is fed into the control unit, which directs the processing equipmentaccordingly.2、In the point-to-point system, also called positioning, each axis of the machine isdriven separately by lead-screws and, depending on the type of operation, at different velocities.Unit3:1、Usually a paper tape is first prepared for trying out and debugging the program.2、Complex parts are now machined using graphic-based, computer-aidedmachining programs.Unit4:1、It was noted that each machine, regardless of how highly it is automated, isdesigned to perform basically one type of operation.2、The cutting tools are automatically selected random access for shortest route tothe machine spindle.Unit5:1、The Cartesian robot devices its name from the coordinate system.2、In order for a device to qualify as a robot, it must be easily reprogrammable. Unit6:1、Modern manufacturing industries are racing a lot of challenges caused bygrowing international competition and fast-changing market demands.Unit7:1、Computer-aided design (CAD) can be defined as the use of computer systems toassist in the creation, modification, analysis, or optimization of a design.Unit8:1、The goal of an automated storage and retrieval system is to deliver the rightmaterial to the right place at the right time.Unit9:1、The enterprise can be viewed as a collection of interconnected virtual and/orreal entities.Unit10:1、It is the first commercially available rapid prototype and is considered as the most widely used prototyping machine.Unit 11.The central and essential ingredient of CAD/CAM is the digital computer.2.This communication is accomplished through peripheral equipment such asreaders , printers ,and process interface devices.Unit 21.The program of instructions is the detailed step-by-step commands that directthe processing equipment.2.While machining is being performed with one pallet in position in front of thetoll, the other pallet is in a safe location away from the spindle.Unit 31. A program from numerical control consists of a sequence of directions thatcauses an NC to carry out a certain operation, machining being the most commonlyused process.2.This language, in its various expanded forms , is still the most widely used forboth point-to-point and continuous-path programming .Unit 41 .In general ,the work piece is stationary and the cutting tools rotate, as they do in milling and drilling operations.2.The work piece in a machining center is placed on a pallet or module that can be moved and swiveled in various directions .Unit 51.Control for either device can be either open-loop or closed-loop.2.Gantry robots are commonly used for assembly where tight tolerance and exactlocation are required.Unit 61.There is a need to integrate the design and manufacturing phases in order tocut short the lead time ,thus winning a competitive situation in the internationalmarket.2.In other words , it eliminates the possibility of designing a product that waspreviously designed because it facilitates storage easy retrieval of engineering designs.Unit 81.However ,the following represent a collection of FMS definitions ,some traceableand some not traceable to their originating source.2.FMS combines microelectronics and mechanical engineering to bring theeconomics of scale the batch work.Unit 101.Global communication networks have lead to a high level of interactivity resultingin cooperative problem solving in manufacturing.2.Real-time on-line quality control will be exercised through Intelligent IntegratedDiagnostics.Unit 111.However ,there are a number of obstacles in true integration of computer-aideddesign with computer-aided manufacturing for rapid development of newproducts.2.The laser beam(激光束) is deflected horizontally in X and Y exes bygalvanometer-driven mirrors so that it moves across the surface of resin to produce a solid pattern.1、The central and ______ ______ of CAD/CAM is the digitalcomputer .(essential ingredient)2、The ____ instructions that computers can understand are called machinelanguage.(binary-coded)3、Since the introduce of DNC there have been ____ advances in computertechnology.(dramatic)4、In previous the important features and functions of the machine control unit in___ ___were described .( numerical conrrol )5、This is a viable _____ method that can be highly outomated ; it is principlebehind transfer lines . ( manufacturing )6、The machining center is epuiped wuth a _____ automatic tool changer.(programmable )7、Robots are usually _______ by the design of the mechanicalsystem.( characterized)8、 A ______ robot is composed of two linear axes and one rotary axis .( cylindrical )9、Their manufecturing opprach involved suchprinciple as ____ by product ratherthan by process and minimiling the routing paths. ( departmentalization)10、There are basically two types of code constructions nemely ____ and_____.( monocodes polycodes)11、FMS combines _____ and mechanical engineering to bring the economics ofscale to batch work. ( microeletronics)12、 Flow to and from the areas that the ASRs is to serue should be kept clean an freeof obstructions and waiting to be moved ______. ( components)13、Let us first examine the _____ _____ of the change , namely informationtechonology.(underlying backbone)14、The enterprise can be viewed sa a collection of _____ virtual and/or realentities.( interconnected)15、The touch of the physicals objects can reveal ______ problems an sometimesspark a betlr design .( unanticipated)16、The meterial used is liquid _____ resign acrylate,( photo-curable)P92 1。
(完整版)机电专业英语
一．单词翻译(英译汉，汉译英共20分）compound pulley 组合滑轮screw 螺丝worm gear 涡轮clearance fit 间隙配合transition fit 过渡配合interference fit 过盈配合ground teeth 精密齿gear reductions 齿轮减速比aluminum 铝brass 黄铜bronze 青铜cast iron 铸铁carbon 碳钢alloy steel 合金钢hardened steel 硬化钢stainless steel 不锈钢plastic materials 塑料材料gear teeth 齿轮straight-toothed 直齿轮rack and pinion 齿条和齿轮straight bevel gears 直齿锥齿轮spiral bevel gears 弧齿锥齿轮friction 摩擦lubrication 润滑lubricant 润滑剂full fluid film lubrication 全液态薄膜润滑boundary lubrication 边界润滑elastrohydrodynamic lubrication 流体弹性动力润滑proton 质子neutron 中子parallel circuit 并联电路series circuit 串联电路electron 电子inductor 电感capacitor 电容conductor 导体semiconductor 半导体metal-oxide-semiconductor 金属氧化物半导体integrated circuit 集成电路integrated circuit chip 集成电路芯片dopant 掺杂剂mask 掩膜doping 掺杂photoresist 感光胶etch 蚀刻法dielectric 非传导性（电介质）rung 梯级branch 分支instructions 指令power rails 母线quantity 数量parameter 参数ladder diagram 梯形逻辑图ON-delay timer 通电延时定时器OFF-delay timer 断电延时定时器retentive timer 保持定时器proximity timer 接近开关electromechanical control 机电控制mobile robots 可移动机器人manipulator robots 操作机器人self reconfigurable robots 自变形（重装）机器人Analog-to-Digital Converter A/D模数转换器Digital-to-Analog Converter D/A模数转换器ASIC(Application Specific Integrated Circuit)专用采集电路Laplace transform 拉普拉斯变换Z-transform Z变换valve 阀pump 泵motor 发动机cavitation 气穴hydraulic 液压的equilibrium position 平衡位置vibration(oscillation) 振动transducer 饱和电抗器,传感器，变频器reservoir 油箱pump with electric motor 电力马达泵unloader and safety relief valve 减荷器和安全卸压阀check valve 止回阀accumulator 蓄电池valve manifold 阀箱electronic control card 电子控制插件cylinder 汽缸hydraulic motor 液压发动机return line filter 回油阀derivative 导数displacement 位移velocity 速度acceleration 加速度peak amplitude 振幅峰值digital signal processing 数字信号处理二、汉译英（20分）1.滑轮相比机器的缺点是使用刚性物体来传递力，滑动和伸展拉紧。
计算机英语教程 (9)
Exercises I. Read the following statements carefully, and decide whether they are true (T) or false (F) according to the text.
___ 1．Many people still have a lot of concerns about doing business online. ___2．Security is one of the biggest challenges that E-commerce faces. ___3．Future visions become current directions just about quickly. ___4．Customers have normally been glad to exchange per¬sonal privacy for shopping convenience so far. ___5．Digital technology is trans¬forming the shopping experience only in the stores.
高等教育出版社机电英语课件 Unit 3 Building Service
• • • • • • •
an automatic suppression system 自动灭火系统 sprinkler 喷水装置 carbon dioxide [’kɑ:bən] [dai’ɔksaid] 二氧化碳 a complete monitoring system of water flow • 一套完整的水流监测系统 • floors throughout the entire building • 整幢大楼的楼层
• issuing instructions to the building’s occupants • 向楼宇住户发布指令 • amplifier cabinets to contain the redundant amplifiers • 包含有备用扩音器的扩音器机箱 • alarm signal generators • 警报信号发生器
• • • • • • • • • •
the Mechanical System Control Office 机械系统控制办公室 manual fire alarm station 手动火警站 each floor at the stairs 每层楼梯处 fire notification by the building occupants 向楼宇住户通知火情 smoke detector 烟雾检测器
• • • • •
a central fire control staty 地面一楼大厅 visually display by zone any alarm condition • 清楚显示各区域任何火警情况 • a second panel • 第二个仪表板
• circuitry as required to transmit the alarm signal to the loudspeakers serving the alarm floor and the floor above • 向火警层及其上层的扩音器传送火警信号的 电路 • to visually display the zone in alarm at the central fire control station and at the mechanical system control office • 在中央火警控制站和机械系统控制办公室能 清楚显示该火警区（的电路系统）
高教版英语1(高职高专版)(第三版)课件unit 9
Helen: What time do they leave?
Clerk: There is a train at 6 a.m., and it l get you there at 11 a.m. But there are many stops along the way.
Unit 9 Itinerary and Schedule
Integrated Skills Development
Dialogue A
When Does the Train Leave?
(Brenda is going to Shenyang for a get-together
with her friend. She is now asking a ticket agent for
6) Can we possibly see something of (Beijing)? Will we have the chance/opportunity to visit (other cities)? Will we go to (the Forbidden City)? I hear it is well worth visiting. We’d like to see how people live as well.
Amtrak (美铁)
In America, originally railroads were private companies. Today they have been grouped into a national network of passenger service called Amtrak (美铁) providing first and second class accommodations. Special tours including hotels and side trips, are also organized by Amtrak.
Lesson 13 Computer Numerical Control
。 2014-12-24
《机械工程专业英语教程》
2014-12-24
《机械工程专业英语教程》
7
2.Drive system. The drive system is comprised of screws and motors that will finally turn the part program into motion.[1] The first component of typical drive system is a high-precision lead screw called a ball screw（Fig.68.1）. Eliminating backlash in a ball screw is very important for two reasons. First，high-precision positioning can not be achieved if the table is free to move slightly when it is supposed to be stationary. Second，materials can be climb-cut safely if the backlash has been eliminated. Climb cutting is usually the most desirable method for machining on a CNC machine.
机电专业英语
《机电专业英语》教学大纲
学分：2
学时：36
一、课程性质与任务
1．课程的性质：专业必修课程。
2．课程的任务：培养应用型人才，结合企业生产实际，力求教授学生未来工作岗位必须掌握的专业英语知识，着力培养学生在实际工作岗位上运用专业英语的能力。
3．前导课程：《大学英语》、《机械制造基础》等。
二、课程目标
（一）知识教学目标
1．掌握本专业领域使用频率较高的专业词汇和表达方法；
2．掌握一些快速、精确阅读理解专业文献的方法；
3. 拓展学生运用英语进行交际的范围和继续学习的能力；
（二）素质教育目标
1．培养学生理论紧密联系实践的学习作风；
2．培养学生严肃认真、耐心仔细的工作作风和职业道德。
3．培养学生提出问题、独立分析问题与解决问题的能力和创新精神。
三、教学内容及要求
四、教学方式、方法建议
1．鉴于《机电专业英语》理论性、实践性都强的特点，主要采用课堂教授的教学方式，再结合学生金工实习、课后阅读等，充分认识和学习科技英语在实践中的运用。
2．本课程专业术语多，除教授教材所有内容外，应适当引领学生回顾及学习专业知识；
3．加强学生的阅读能力，提高学生专业技术及专业英语的能力；
五、考核方式及成绩评定办法
1．形成性考核（40%）
平时出勤、作业、课堂表现等占40％；
2．总结性考核（60%）
六、主要教学条件
课堂教学条件：主要是教室；
七、教材与参考书
1．教材
徐存善主编.《机电专业英语》第一版. 机械工业出版社，2009.8 2.参考书
黄星主编.《模具专业英语》第一版.人民邮电出版社，2009.10。