机械工程专业英语 李光布 饶锡新 主编 p7-p9 READING MATERIAL 课文翻译
机械工程专业英语翻译华中科技大学版李光布
1.机械设计过程机械设计的最终目标是生产一种满足客户需求的有用产品，而且这种产品安全，高效，可靠，经济，实用。
当回答这个问题时，广泛地思考，我将要设计的产品或系统的客户是谁？在产品设计之前，了解所有客户的期望和期望是至关重要的。
营销专业人员经常被用来管理客户期望的定义，但是设计师可能会把他们作为产品开发团队的一部分。
许多方法被用来确定客户想要什么。
一种被称为质量功能部署或QFD的流行方法寻求（1）识别客户期望的所有特征和性能因素，以及（2）评估这些因素的相对重要性。
QFD过程的结果是产品的一组详细功能和设计要求。
考虑设计过程如何配合为客户提供令人满意的产品所必须发生的所有功能以及在产品的整个生命周期中为产品提供服务也很重要。
事实上，重要的是考虑产品在使用寿命后如何处置。
影响产品的所有这些功能的总和有时被称为产品实现过程或PRP。
PRP中包含的一些因素如下：•营销功能来评估客户的要求•研究确定可在产品中合理使用的可用技术•可以包含在产品中的材料和组件的可用性•产品设计和开发•性能测试•设计文件•供应商关系和采购职能•考虑全球材料采购和全球营销参加工作的技能•物理工厂和设施可用•制造系统的能力生产计划和生产系统的控制•生产支持系统和人员•质量体系要求•销售操作和时间表•成本目标和其他竞争性问题•客户服务要求•产品在生产，操作和处置过程中的环境问题•法律要求•金融资本的可用性你可以添加到这个列表吗？您应该能够看到，产品的设计只是综合过程的一部分。
在本文中，我们将更加注意设计过程本身，但必须始终考虑设计的可生产性。
产品设计和制造过程设计的同时考虑通常被称为并行工程。
2.机械设计所需的技能产品工程师和机械设计师在日常工作中使用广泛的技能和知识。
这些技能和知识包含在以下容中：•素描，技术制图和计算机辅助设计•材料的性质？材料加工*和制造过程•化学的应用，如腐蚀防护，电镀和喷漆静力学动力学材料的强度，运动学和机制流体力学，热力学和传热•流体动力，电气现象的基本原理和工业控制•材料和机械系统的实验设计和性能测试•压力分析•齿轮，皮带传动，链传动，轴，轴承，键，花键，联轴器，密封件，弹簧，连接（螺栓连接，铆接，焊接，粘接），电动机，直线运动等机械元件行为的专业知识装置，离合器和制动器•创造力，解决问题和项目管理口头沟通，听力，技术写作和团队合作技巧3.功能，设计要求和评估标准第1节强调了在开始设计机械设备之前仔细确定客户的需求和期望的重要性。
机械工程专业英语复习资料
AC=alternative current交流AGV=Automated Guided Vehicle自动导引小车AGVS= Automated Guided Vehicle System自动导引小车系统AMT=advanced manufacturing technology先进制造技术ANSI=American National Standards Institute美国国家标准协会APT=Automatically Programmed Tools自动数控程序BOM=Bill of Material物料清单CAA=Computer Aided Analysis Process计算机辅助分析过程CAD=Computer-Aided Design计算机辅助设计CADD=Computer-Aided Design Drafting计算机辅助设计制图CAE=computer aided engineering计算机辅助工程CAM=Computer-Aided Manufacturing计算机辅助制造CAIT=computer aided testing and inspection计算机辅助实验与检测CAPP=Computer Aided Process Planning计算机辅助工艺设计CHP=chemical Polishing 化学抛光CIM=Computer integrated manufacturing计算机集成制造CBN=Cubic Boron Nitride立方氮化硼CMM=Coordinate Measuring Machine三坐标测量机CNC=computer numerical control电脑数字控制DC=direct current直流DNC=Direct Numerical Control直接数字控制DOF=degrees of freedom自由度DXF=data exchange format数据交换格式ECM=Electrochemical Machining电解加工EBM=Electron beam machining电子束加工EDM=Electrical Discharge Machining电火花加工EGM= enhanced graphics module增强型图形模组FA=factory automation工厂自动化FDM=Fused Deposition Modelling熔融沉积成型FEA=Finite element analysis有限元分析FMC=flexible manufacturing component柔性制造单元FMS=Flexible Manufacturing System柔性制造系统Finite-element有限元Four-bar linkage四连杆机构GNC=graphical numerical control图形数控GT=Grease Trap润滑脂分离器HPM=hard-part machining硬态切削HSS=High-Speed-Steel高速钢IGES=initial graphic exchange specification初始图形交换规则ISO=International Standardization Organization国际标准组织IT=International Tolerance(grade)国际公差JIT=Just in Time准时生产LBM=Laser beam machining激光切削加工LED=light-emitting diode发光二级管LMC=least material condition最小实体状态LOM=Laminated Object Manufacturing叠层实体制造技术MMC=maximum material condition最大实体状态MATL=material材料MC=machining center加工中心NC=Numerical Control数字控制NMP=Nontraditional Manufacturing Processes特种加工技术PCB=printed circuit boards印刷电路板PLC=Programmable Logic Controller PLC控制PKW=parallel kinematics machine并联机床QTY=quantity required需求数量RGV=rail guided vehicle有轨自动导引小车RPM=Rapid Prototype Manufacturing快速成型技术SL= Stereo Lithography光固化成型SLA=Stereo Lithography Apparatus立体印刷技术/光固化立体造型SLS=Selective Laser Sintering选择性激光烧结USM=Ultrasonic Machining超声波加工VNC=voice numerical control声音控制WEDM=Wirecut Electrical Discharge Machining电火花线切割加工WJM/C=water-jet machining/cutting水射流切削3D PRINT 3D打印一、将下列单词译成汉语Mechanism（机械，机构，机构学）configuration（外形，构造，结构）displacement（位移）velocity（速度）acceleration（加速度）gear（齿轮）sprocket（链轮）pulley（带轮）kinematician /dynamics（运动/动力学，力学）kinematician（运动）cam凸轮camshaft凸轮轴accuracy精度dependability可靠性pulley滑轮flywheel飞轮crank曲柄sprocket链轮axle心轴spindle主轴clutche离合器brake制动shaper牛头刨床planer龙门刨pulley皮带轮flywheel飞轮spindle轴clutche离合器crank曲柄sprocket链轮axle车轴brake制动warpage配气机构coolant冷却剂二、将下列词组译成汉语kinematic chain（运动链）skeleton diagram（草图，示意图，简图）Gear system/Cam system（齿轮传动系统/凸轮系统）uniform motion/nonuniform motion（匀速运动/非匀速运动）nonlinear motion（非线性运动）kinematic analysis（运动分析）schematic diagram（运动简图）textile machinery（纺织机械）Kinematic design/ kinematic syntheses（运动设计/运动合成）machinedesign（机械设计）Gear trains/ Cam mechanisms（轮系，齿轮传动链/凸轮机构）dynamic force/inertia force/ static force（动力/惯性力/静力）relative velocity/ absolute velocity（相对速度/绝对速度）angular acceleration/ tangential acceleration/ centripetalacceleration/ velocity vector（角加速度/切向加速度/向心加速度/速度矢量）binary link/ ternary link（二杆组/三杆组）the basecircle（基圆）the pitch curve（啮合曲线）the contact force（接触力）the intermittent motion （间歇运动）the common normal（公法线）the conjugate profiles（共轭齿廓）the cycloidal profiles （摆线齿形）the involute profiles （渐开线齿形）the spurgear（直齿轮）the herringbone gears（双螺旋齿轮）the face gear（端面齿轮）the radial distance （径向距离）the addendumcircle（齿顶圆）The tooth thickness（齿厚）the tooth space（齿间隙）the cap screws（螺钉）the setscrews（固定螺丝钉）theengineering graphics（工程力学）mechanical design（机械设计）the installation techniques（安装技术）the bolted joint（螺栓连接）the hardened washers（强化垫圈）the fatigue resistance（抗疲劳强度）the modulus of elasticity（弹性模量）theantifriction bearing（减摩轴承）the rolling bearing（滚动轴承）the rolling contact （滚动接触）the sliding contact（滑动触电）the corrosion resistance（抗腐蚀性）the machining tolerances（加工公差）the fatigue loading （疲劳载荷）the radial loads（径向负荷）the thrust loads逆负荷the ball bearing球轴承the roller bearing滚子轴承the single-row bearings单沟轴承thedouble-row bearing双沟轴承the needle bearing滚针轴承the bearing life轴承寿命The rating life额定寿命the axis of rotation旋转轴The helix angle螺旋角a right-hand helix 右旋a left-hand helix左旋an involute helicoids螺旋面an involute curve渐开线theshaft centerlines轴中心线worm gear蜗轮the hypoid gear准双曲面齿轮right angle直角worm gearing蜗杆传动the lead angle导角shaftangle轴线角度bending load弯曲载荷tension load张力负荷compression load压缩负载torsional load扭转负荷the bending moment弯矩the bending stress弯曲应力the shot peening喷丸法the actuating force工作力the coefficient of friction摩擦系数Anelectromagnetic coil电磁线圈the magnetic circuit磁路the design specifications中国设计规范the industrial engineering工业工程the machining industry加工行业the machine shops机器商店machine tool机床angular displacements角位移The electric motor电机transmission Linkage传输连接the cutting force切削力the static loads静态负荷the dynamic loads动态载荷the grinding wheel砂轮lubricating oil润滑油the cutting fluids切削液protective guards防护装置the cutting tool刀具the range of feeds进给量enginelathes普通车床turret lathes六角车床the boring machine镗床the drilling machines钻床the milling machines铣床the broachingmachines绞孔机；拉床the sawing machines锯床the cylindrical grinder外圆磨床the centreless grinders无心磨床the surface grinders平面磨床the chemical milling铣削the ultrasonic machining超声波加工a toolholder刀架a compound rest复式刀架the feed screw丝杆the feed rod光杆The feed box进给箱power feed进给the full depth大切削深度thread cutting螺纹切削a chasing dial螺纹指示盘the forward stroke冲程the return stroke回程the clapper box摆动刀架thehydraulic shaper液压牛头刨床the universal machines通用机械universal joints万向节Tracer milling仿形铣the master pattern模型the acceleration of gravity重力加速度conducting material导电材料non-conducting material绝缘材料三、将下列短语译成汉语1.Plane and spatial linkages（平面和空间连杆）2.constrained kinematic chain/unconstrained kinematic chain（约束运动链/非约束运动链）3.closed-loop linkage（闭环运动链）4.four-bar linkage（四连杆机构）5.slider-crank (or crank and slider) mechanism（曲柄滑块机构）6.internal combustion engine（内燃机）7.the kinematic analysis of mechanisms（机构运动分析）8.degree of freedom of the mechanism（机构自由度）9.kinematic analysis process /kinematic synthesis process（运动分析步骤/运动合成步骤）10.input angular velocity（输入角速度）11.input angular acceleration（输入角加速度）12.automatic packaging machinery（自动包装机）13.cam-contour dimensions/cam-follower diameters（凸轮轮廓尺寸/凸轮从动件直径）14.mechanical analog computer（机构模拟计算机）15.dead-center position（死点位置）16.crank-rocker linkage/double-rocker linkage/double-crank (drag-link) linkage（曲柄摇杆机构/双摇杆机构/双曲柄机构）17.maximum force component/ resulting output force or torque（最大的力量组成/输出的最大力或力矩）18.output motion variables/input motion variable（输出运动变量/输入运动变量）19.absolute angular positions（绝对角位置）20.velocity polygon method（速度的多边形的方法）21.instantaneous center method/instant center method（瞬心法/即时瞬心法）22.inertia-force analysis of mechanisms and machines（机构和机器的惯性力分析）23.one and the same coordinate system /inertia frame of reference（惯性参考系）24.systematic design of mechanisms（机械设计的系统）25.cam-contour dimensions/cam-follower diameters（凸轮轮廓尺寸/凸轮从动件直径）26.disk or plate translating (two-dimensional or planar) 盘形传动凸轮（两维的，即平面的）27.cylindrical (three-dimensional or spatial) cams圆柱形凸轮（三维的，即空间的）机构28.a radial (in-line) translating roller follower一个对心直动滚子从动件29.a constant angular velocity ratio旋转角速度的比例30.a constant torque ratio一个恒转矩比31.Nonlinear angular velocity ratios非线性角速度比率32.the parallel helical gear平行斜齿轮33.the crossed helical gear交叉斜齿轮34.the straight bevel gear直锥齿轮35.the spiral bevel gear弧齿锥齿轮36.the skew bevel gear大角度斜交锥齿轮37.the hexagon head screws六角头螺钉38.the fillister head screws槽头螺钉39.the flat head screws 平头螺钉40.the hexagon socket head screws内六角沉头螺钉。
机械工程专业英语_第一课
GENERAL INFORMATION
教学目的和要求
掌握机械工程专业的词汇和专业术语； 培养专业英语的基本翻译能力、阅读能力、写作能力； 培养基础的听力与口语能力和资料检索能力。
听：科技英语相关的新闻、报道、课程视听材料； 说：自制PPT，讲解机械制造工艺、装备及设计方法等； 读：具备阅读机械专业英语教材、期刊论文和说明书的能力； 写：科技论文写作的格式、方法，重点练习英文论文摘要的写作； 译：掌握基本的专业文献翻译能力。
mechanicalengineeringschoolmechanicalelectricalinformationengineeringshandonguniversityweihaigeneralinformationbasicconceptengineeringmechanicsthreadedfastenerslesson19introductionmachinedesignlesson25machininglesson29gearmanufacturingmethodslesson47computeraidedprocessplanninglesson53industrialrobotslesson57lesson59mechanicalengineeringinformationagelesson61howscientificpapergeneralinformation课程内容generalinformation教学目的和要求掌握机械工程专业的词汇和专业术语
GENERAL INFORMATION
考试说明
时间：第十六周 成绩：平时成绩（30%）+期末成绩（70%）。 方式：有限开卷，可带一本英语字典（非电子词典）。
机械工程专业英语_翻译
《机械工程专业英语》翻译李光布饶锡新主编华中科技大学出版社Lesson14 CAM1.introductionComputer-aided manufacturing involves the use of ……………………计算机辅佐制造的含义是：使用计算机和计算机技术来协助产品制造的所有环节，其中包括加工工艺和生产的辅助设计、加工、生产计划制定、管理和质量控制等！由CAD开发的数据库首先被存储，然后由CAM做进一步的处理，转化为对生产设备和材料处理设备进行操作和控制所必须的数据和命令，对产品的质量进行自动的检测和测试！ CAD\CAM的出现对制造业有很大的影响，标准化生产的发展和设计努力、试验和原型工作的减少。
它已经较大的减少了消耗和提高生产效率成为可能。
例如，波音777客机完全被用计算机（无纸的设计），在两千个工作站连接着8台计算机，这个飞机由CAD\CAM软件建造，没有原形或像以前的模型所要求的建立，这个开发的花费大约在60亿。
通过工业社会的历史，许多发明取得专利，并且整个新技术在发展，华特的零件互换性概念、瓦特的蒸汽机和福特的装配线是一部分发展却是最显著的在我们的工业时期，像我们知道的那样，这些发展的每一个都影响了制造业，并且赢得了他们个人应受认可在我们的历史课本中。
或许数字计算机技术是唯一比以前技术更快、更大影响制造业的发展。
在计算机辅助设计或计算机辅助制造中交互式计算机制图起着重要的作用，通过使用交互式计算机制图，设计人员可开发被设计产品的图形图像，同时储存这些生成图形图像的电子数据，图像可以以二维三维的实体的形式表现出来，交互式计算机制图图像是由点、线、圆和曲线这些基本的几何元素构成的这些图像一旦创建他们可以通过放大缩小旋转和移动在内的各种各样的方式轻松的来编辑和操交互式计算机制图系统的典型硬件结构包括计算机、显示器、软盘启动器、、硬盘或两者兼备以及输入设备、如键盘、绘图仪和打印机。
机械工程专业英语(李光布_华中科技大学出版社)课后答案
《机械工程专业英语》翻译李光布饶锡新主编华中科技大学出版社Lesson11 numerical controlIntroductionOne of the most fundamental concepts in the area ……………………数控就是用一个穿孔的纸带或存储的程序来控制机床，美国电子工业协会对数字控制所下的定义为：“一个各项工作都有在各点上直接插入的数字来控制的系统，该系统必须至少能够自动解释这些数字中的部分。
”生产某个零件所需要的数据被称作这个零件程序数控比先前的手工操作生产更多的机械设备，数控机床能够自动的生产不同种类的零件，并且这些零件都有各种各样复杂的加工工艺过程，数字控制使得制造者们可以承担产品的加工，其产品的加工从经济的观点上看使用人工控制机床和加工过程是不太可行的的当一个孔被钻或冲出后，刀具向上撤回快速移动到下一个位置，重复这个步骤，路线沿着一个位置到另一个位置在某一方面是很重要的，他必须挑选一个是经过的时间减少、更有效（的路线）。
点对点的系统主要用于钻床、冲床和连续的铣工序中最近对DNC（现在表示分布式数字控制）的定义涵盖了“使用主计算机作为控制系统，来管理大量的带有机载微型计算机的独立的计算机数控机床”的含义。
这种系统提供了更大的存储和计算机能力来灵活的克服直接数控的缺陷。
计算机数字控制是由控制微型计算机作为机器集成的部分或某种设备一部分的系统（如机载计算机）。
零件程序由编程者事先准备好，该程序应结合由绘图软件包和加工仿真中获得的信息，从而确保零件没有程序缺陷。
机器操控者可以很容易的通过手工对机载计算机进行控制，操作者能够直接对程序进行修改，并为不同的零件制定和存储程序Lesson14 CAMTEXT1.introductionComputer-aided manufacturing involves the use of ……………………计算机辅佐制造的含义是：使用计算机和计算机技术来协助产品制造的所有环节，其中包括加工工艺和生产的辅助设计、加工、生产计划制定、管理和质量控制等！由CAD开发的数据库首先被存储，然后由CAM做进一步的处理，转化为对生产设备和材料处理设备进行操作和控制所必须的数据和命令，对产品的质量进行自动的检测和测试！CAD\CAM的出现对制造业有很大的影响，标准化生产的发展和设计努力、试验和原型工作的减少。
机械专业英语 (2)
机械专业英语1. Introduction机械工程是一门涉及机械设备和工具设计、制造、使用和维护的学科，是工程技术领域中的一个重要分支。
机械专业英语是机械工程学习中必不可少的一部分，它涉及到机械工程师需要掌握的英语词汇、专业术语、文档阅读和撰写技巧等方面。
本文将介绍一些常用的机械专业英语词汇和常用的表达方式，以帮助读者更好地掌握机械专业英语。
2. Mechanical Engineering Vocabulary以下是一些常用的机械工程专业词汇，可以帮助读者对机械工程领域的基本概念有更好的了解：•Mechanical Engineering（机械工程）: A discipline of engineering that deals with the design, construction, and operation of machinery.•Engineer（工程师）: A person who designs, builds, or maintains engines, machines, or public works.•CAD（计算机辅助设计）: Computer-Aided Design, a software tool used by engineers to create and modifymechanical designs.•CAM（计算机辅助制造）: Computer-Aided Manufacturing, a software tool used to controlmanufacturing processes.•CNC（计算机数控）: Computer Numerical Control,a method of controlling manufacturing machines usingcomputers.3. Common Expressions in Mechanical Engineering在机械工程领域，有一些常用的表达方式，以下是一些示例：•According to the design specifications（根据设计规范）: Indicates that something is done in accordance with the design requirements.•The machine is in operation（机器正在运行）: Indicates that the machine is currently running andperforming its intended function.•The material is heat-treated（材料经过热处理）: Indicates that the material has undergone a specific heat treatment process for improved properties.•The system is experiencing mechanical failure（系统发生机械故障）: Indicates that the system is notfunctioning properly due to a mechanical issue.•The component needs to be lubricated regularly（零部件需要定期加润滑油）: Indicates that regularlubrication is required to ensure proper functioning of the component.4. Reading and Writing Documents in Mechanical Engineering在机械工程领域，阅读和撰写文档是非常重要的技能。
机械工程专业英语第二版必考翻译(完整版)
机械工程专业英语第二版必考翻译(完整版)1.With low-power machinery or vehicles the operator can usually apply sufficient force through a simple mechanical linkage from the pedle or handle to the stationary part of the brake. In many cases, however, this force must be multiplied by using an elaborate braking system.（P5）用低能机器或传力工具，操作者通过向踏板或把手的一个简单机械连接构件作用足够的力量到车闸固定的部分。
大多数情况，然而，用一个详细（复杂）的车闸系统使这个力量成倍增加。
2. The fundamental principle involved is the use of pressed air acting through a piston in a cylinder to set block brakes on the wheels. The action is simultaneous on the wheels of all the cars in the train. The pressed air is carried through a strong hose from car to car with couplings between cars; its release to all the separate block brake units, at the same time, is controlled by the engineer. (Braking Systems)（P5）相关的基本原理是使用压缩气体，通过气缸内的活塞将闸块压在车轮起作用。
《机械工程专业英语教程》课文翻译
机械工程专业英语教程第一课：机械工程简介Introduction to Mechanical EngineeringSection 1: OverviewMechanical engineering is a diverse and dynamic field that encompasses the design, development, and operation of machinery, structures, and systems. This branch of engineering plays a crucial role in various industries, including automotive, aerospace, manufacturing, and energy.Section 2: Responsibilities and SkillsAs a mechanical engineer, your responsibilities will include designing and analyzing mechanical systems, conducting tests and experiments, and supervising the manufacturing process. You will also need to have a strong understanding of physics, mathematics, and computer-aided design (CAD). Additionally, problem-solving skills, attention to detail, and the ability to work well in teams are essential.Section 3: Career OpportunitiesA degree in mechanical engineering can open up a wide range of career opportunities. You could work in research and development, product design, manufacturing, or projectmanagement. Mechanical engineers are in demand in almost every industry, ensuring a stable and rewarding career path.Section 4: University CoursesTo become a mechanical engineer, it is essential to pursue a degree in mechanical engineering from a reputable university. The curriculum typically includes courses in engineering principles, materials science, thermodynamics, fluid mechanics, and mechanical design. Additionally, practical training through internships or cooperative education programs is crucial for gaining hands-on experience.Section 5: ConclusionMechanical engineering offers a challenging and rewarding career for those with a passion for solving problems and a desire to create innovative solutions. With the right education and skills, you can embark on a successful journey in the field of mechanical engineering. Remember, the possibilities are endless in this ever-evolving discipline.第二课：机械设计基础Fundamentals of Mechanical DesignSection 1: IntroductionIn this lesson, we will explore the fundamentals of mechanical design. Mechanical design involves the creation and development of physical systems and components that meet specific requirements and specifications. This processrequires a deep understanding of materials, mechanics, and engineering principles.Section 2: Design ProcessThe design process typically follows a systematic approach that includes several stages. These stages include problem identification, conceptual design, detailed design, manufacturing, and testing. Each stage involves various activities such as brainstorming, prototyping, and evaluation.Section 3: Design ConsiderationsDuring the design process, there are several important considerations to keep in mind. These include functionality, efficiency, reliability, safety, and cost-effectiveness. It is also crucial to consider the environmental impact and sustainability of the design.Section 4: Tools and SoftwareTo aid in the design process, engineers use various tools and software. Computer-aided design (CAD) software allows for precise modeling and simulation of mechanical systems. Finite element analysis (FEA) software helps in analyzing the structural integrity and performance of designs.Section 5: Case StudyTo further understand the application of mechanical design principles, we will examine a case study. This real-world example will demonstrate how the design process isimplemented to solve a specific problem and achieve desired outcomes.Section 6: ConclusionMechanical design is a critical aspect of mechanical engineering. It requires a combination of creativity, technical knowledge, and attention to detail. By mastering the fundamentals of mechanical design, you will be well-equippedto tackle complex challenges and contribute to the development of innovative solutions.以上是《机械工程专业英语教程》的课文翻译。
《机械工程专业英语》PPT课件
•
•
Mechanical Engineering English
Dialogue Two
译文
• Mr. King: How about the activities in your school? • Lily: It blooms in every corner of campus.
Associations of different varieties organized by students with the same interest develop various popular activities such as Foreign Languages Festival and Computer Science Festival.
Mechanical Engineering English
• • • • • •
interrelate [ .intə(:)ri'leit ] v. 互相关连,相关 ecology [ i(:)'kɔlədʒi ] n. 生态学 reinstate [ 'ri:in'steit ] v. 恢复; vt. 使恢复原有的职位 assurance [ ə'ʃuərəns ] n. 保证,确信,保险 thrust [ θrʌst ] n. 推力,刺,力推; v. 插入,推挤,刺 incorporate [ in'kɔ:pəreit ] a. 合并的,公司组织的,具 体化的; v. 合并,组成公司,具体表现
Mechanical Engineering English
Lesson 3
机械工程 专业英语
Mechanical Engineering Design
机械工程专业英语PPT课件
Bearing
A device that supports, guides, and reduces the friction of
motion between fixed and moving machine parts. 轴承：在机器的固定和运动部件之间起支撑、引导和减 少运动摩擦的装置。
15
2020/4/26
Lesson 1 Basic Concept in Mechanics
Terminology 术语,专有名词
[,tə:mi'nɔlədʒi]
Text tour
2020/4/26
13
《机械工程专业英语教程》
Terminology
Gear 齿轮, 传动装置
1.A toothed machine part, that meshes with another toothed part to transmit motion or to change speed or direction. 齿轮：有齿的机器零件，与另一个有齿零件相啮合，从而传 递运动或者改变运动的方向或速度。
唐一平主编：《先进制造技术》北京：机械工业出 版社，2004；
王慧莉，贾卫国编《国际学术交流英语》大连：大 连理工大学出版社，2005
主要教学内容
Lesson 1 Basic Concept in Mechanics Lesson 2 Forces and Their Effects Lesson 3 Overview of Engineering Mechanics Lesson 4 Shafts and Couplings Lesson 5 Shafts and Associated Parts Lesson 6 Belts, Clutches, Brakes, and Chains Lesson 7 Fasteners and Springs Lesson 14 Physical Properties of Materials Lesson 29 Tolerances and Surface Roughness Lesson 35 Coordinate Measuring Machine Lesson 36 Lathes
《机械工程专业英语》李光布饶锡新Lesson2CarbonandAlloySteel..
Lesson 2 Carbon and Alloy SteelTEXTSteel is probably the most widely used material for machine elements because of its properties of high strength, high stiffness, durability and relative ease of fabrication. The term steel refers to and alloy of iron, carbon, manganese and one or more other significant elements. Carbon has a very strong effect on the strength, hardness and ductility of any steel alloy. The other elements affect hardenability, toughness, corrosion resistance, machinability and strength retention at high temperatures. The primary alloying elements present in the various alloy steels are sulfur, phosphorus, silicon, nickel, chromium, molybdenum and vanadium.1.Importance of CarbonAlthough most steel alloys contain less than 1.0% carbon, it is included in the designation because of its effect on the properties of steel. As Figure 1.2illustrates, the last tow digits indicate carbon content n hundredths of a percent.As carbon content increases, strength and hardness also increase under the same conditions of processing and heat treatment. Since ductility decreases withincreasing carbon content, selecting suitable steel involves some compromisebetween strength and ductility.As a rough classification scheme, a low-carbon steel is one having fewer than30 points of carbon (0.30%). These steels have relatively low strength but goodformability. In machine element applications where high strength is not required, low-carbon steels are frequently specified. If wear is a potential problem,low-carbon steels can be carburized to increase the carbon content in the veryouter surface of the part and to improve the combination of properties.Medium-carbon steels contain 30 to 50 points of carbon (0.30%-0.50%).Most machine elements having moderate to high strength requirements withfairly good ductility and moderate hardness requirements come from this group.High-carbon steels have 50 to 95 points of carbon (0.50%-0.95%). The high carbon content provides better wear properties suitable for applications requiringdurable cutting edges and for applications where surfaces are subjected to constant abrasion. Tools, knives, chisels, and many agricultural implement components are among these uses.2.Stainless SteelsThe term stainless steel characterizes the high level of corrosion resistance. To be classified as a stainless steel, the alloy must have a chromium content of at least 10%. Most have 12% to 18% chromium.The three main groups of stainless steels are austenitic, ferritic, and martensitic. Austenitic stainless steels fall into the AISI 200 and 300 series. They are general-purpose grades with moderate strength. Most are not heat-treatable, and their final properties are determined by the amount of working. These alloys are nonmagnetic and are typically used in food processing equipment.Ferritic stainless steels belong to the AISI 400 series, designated as 405, 409, 430, 446, and so on. They are magnetic and perform well at elevated temperatures, from 1300℉to 1900℉(700℃-1040℃). They are notheat-treatable, but they can be cold-worked to improve properties. Typical applications include heat exchanger tubing, petroleum refining equipment, automotive trim, furnace parts, and chemical equipment.Martensitic stainless steels are also members of the AISI 400 series, including 403, 410, 414, 416, 420, 431 and 440 types. They are magnetic, can be heat-treated, and have higher strength than the AISI 200 and 300 series, while retaining good toughness. Typical uses include turbine engine parts, cutlery, scissors, pump parts, valve parts, surgical instruments, aircraft fittings, and marine hardware.3.Structural SteelsMost structural steels are designated by ASTM numbers established by American Society for Testing and Materials. The most common grade is ASTMA36, which has a minimum yield point of 36000 psi (248MPa) and is very ductile. It is basically a low-carbon, hot-rolled steel available in sheet, plate, bar, and structural shapes, such as wide-flange beams, American standard beams, channelsand angles.Most wide-flange beams are currently made using ASTM A992 structural steel, which has a yield point of 50 ksi to 65 ksi and a minimum tensile strength of 65 ksi. An additional requirement is that the maximum ratio of the yield point to the tensile strength is 0.85. This is a highly ductile steel, having a minimum of 21% elongation in a 2.00-inch gage length. Using this steel instead of the lower strength ASTM A36 steel typically allows smaller, lighter structural members at little or no additional cost.Hollow structural sections (HSS) are typically made from ASTM A500 steel that is cold-formed and either welded or made seamless. Included are round tubes and square rectangular shapes. There are different strength grades can bespecified. Some of these HSS products are made from ASTM A501 hot-formed steel having properties similar to the ASTM A36 hot-rolled steel.Many higher-strength grades of structural steel are available for use in construction, vehicular, and machine applications. They provide yield points in the range from 42 000 psi to 10 000 psi (290 MPa-700MPa).4.Tool SteelsTool steels refers to a group of steels typically used for cutting tools, punches, dies, shearing blades, chisels and similar uses. The numerous varieties of toolsteel materials have been classified into seven general types. Whereas most uses of tool steels are related to the field of manufacturing engineering, they are also pertinent to machine design where the ability to maintain a keen edge underabrasive conditions is required. Also, some tool steels have rather high shockresistance which may be desirable in machine components such as parts formechanical clutches, pawls, blades, guides for moving materials and clamps.READING MATERIALThe final properties of steels are dramatically affected by the way the steels are produced. Some processes involve mechanical working, such as rolling toa particular shape or drawing through the dies. In machine design, many bar-shaped parts, shafts, wire and structural members are produced in these ways. But most machine parts, particularly those carrying heavy loads, are heat-treated to produce high strength with acceptable toughness and ductility.Carbon steel bar and sheet forms are usually delivered in the as-rolling condition, that is, they are rolled at an elevated temperature that eases the rolling process. The rolling can also be done cold to improve strength and surface finish. Cold-drawn bar and wire have the highest strength of the forms, along with a very good surface finish. However, when a material is designated to be as-rolled, it should be assumed that it was hot-rolled.1.Heat TreatingHeat treating is the process in which steel is modified its properties by different elevated temperatures. Of the several processes available, those most used for machine steels are annealing, normalizing, through-hardening (quench and temper), and case hardening.Figure 1.3 shows the temperature-time cycles for these heat treating processes. The symbol RT indicates normal room temperature, and LC refers to the lower critical temperature at which the ferrite transformation begins during the heating of the steel. At the upper critical temperature (UC), the transformation is complete. These temperatures vary with the composition of the steel. For most medium-carbon (0.30%—0.50%) steels. UC is approximately 1 500°F(822℃). References giving detailed heat treating process data should be consulted.1)AnnealingFull annealing (Figure 1.3(a)) is performed by heating the steel above the upper critical temperature and holding it until the composition is uniform. Then the steel is cooled very slowly in the furnace until its temperature is below the lower critical temperature. Slow cooling to room temperature outside the furnace completes the process. This treatment produces a soft, low-strength form of the material, free of significant internal stresses. Parts are frequentlycold-formed or machined in the annealed condition.Stress relief annealing (Figure 1.3 (b)) is often used following welding, machining, or cold forming to relieve residual stresses and thereby minimize subsequent distortion. The steel is heated to approximately 1 000 °F to 1 200 °℉(540℃—650℃), held to achieve uniformity, and then slowly cooled in still air to room temperature.NormalizingNormalizing (Figure 1.3 (c)) is similar to annealing, but at a higher temperature, above the transformation range where austenite is formed, approximately 1 600 ℉(870℃). The result is a uniform internal structure in the steel and somewhat higher strength than annealing produces. Machinability and toughness are usually improved over the as-rolled condition.2.Through-Hardening and Quenching and TemperingThrough-hardening (Figure 1.3(d)) is accomplished by heating the steel to above the transformation range where austenite forms and then rapidly cooling it in a quenching medium. The rapid cooling causes the formation of martensite, the hard and strong form of steel. The properties of the martensite forms depend on the alloy’s composition. An alloy containing a minim um of 80% of its structure in the martensite form over the entire cross section has high hardenability. This is an important property to look for when selecting a requiring high strength and hardness steel. The common quenching media are water, brine, and special mineral oils. The selection of a quenching medium depends on the required cooling rate. Most machine steels use either oil or water quenching.Tempering is usually performed immediately after quenching and involves reheating the steel from a temperature of 400℉to 1 300℉(200℃—700℃) and then slowly cooling it in air to room temperature. This process modifies the steel’s properties. Tensile strength and yield strength decrease with increasing tempering temperature, whereas ductility improves, as indicated by an increase in the percent elongation. Thus, the designer can tailor the propertiesof the steel to meet specific requirements. Furthermore, the steel in its as-quenched condition has high internal stresses and is usually quite brittle. Machine parts should normally be tempered at 700 ℉(370℃) or higher after quenching.(a)full annealing (b) stress relief annealing(c) normalizing (d) quenching and tempering(through-hardening)Figure 1. 3 Heat treatments for steels3. Case HardeningIn many cases, many parts require only moderate strength although the durface must have a very high hardness. In gear teeth, for example, high surface hardness is necessary to resist wearing as the mating teeth come into contact several million times during the expected life of the gears. At each contact, a high stress happens at the surface of the teeth. In this condition, case hardening is used. The surface (or case) of the part is given a high hardness to a depth of perhaps 0.010 in to 0.040 in (0.25 mm—1.00 mm), although the interior of the part (the core) is affected only slightly, if at all. Theadvantage of surface hardening is that as the surface receives the required wear-resisting hardness, the core of the part remains in a more ductile form which is resistant to impact and fatigue. The most used processes of case hardening are flame hardening, induction hardening, carburizing, nitriding, cyaniding, carbo-nitriding.。
(完整版)机械工程专业英语
Lesson11、the branch of scientific analysis, which deals with motions, time, and forces, is called mechanics and is made up of two parts, statics and dynamics. Statics deals with the analysis of stationary systems, i.e., those in which time is not a factor, and dynamics deals with systems, which change with time.对运动时间和作用力作出科学分析的分支成为力学。
他由静力学和动力学两部分组成。
静力学对静止系统进行分析，即在其中不考虑时间这个引述，动力学对事件而变化的系统进行分析。
2、Any two such forces acting on a body constitute a couple. The arm of the couple is the perpendicular distance between their lines of action, and the plane of the couple is the plane containing the two lines of action.作用在一个刚体上的两个这样的的里构成一个力偶。
力偶臂是这两个条作用线之间的垂直距离，力偶面是包含着两条作用线的平面。
3、Mechanics deal with two kinds of quantities: scalars and vectors. Scalar quantities are those with which a magnitude alone is associated. Examples of scalar quantities in mechanics are time, volume, density, speed, energy, and mass. Vector quantities, on the other hand, possess direction as well as magnitude. Examples of vectors are displacement, velocity, acceleration, force, moment, and momentum.力学涉及两种类型的量，标量和矢量。
机械工程专业英语翻译华中科技大学版李光布
机械工程专业英语翻译华中科技大学版李光布 This manuscript was revised by the office on December 22, 20121.机械设计过程机械设计的最终目标是生产一种满足客户需求的有用产品，而且这种产品安全，高效，可靠，经济，实用。
当回答这个问题时，广泛地思考，我将要设计的产品或系统的客户是谁？在产品设计之前，了解所有客户的期望和期望是至关重要的。
营销专业人员经常被用来管理客户期望的定义，但是设计师可能会把他们作为产品开发团队的一部分。
许多方法被用来确定客户想要什么。
一种被称为质量功能部署或QFD的流行方法寻求（1）识别客户期望的所有特征和性能因素，以及（2）评估这些因素的相对重要性。
QFD过程的结果是产品的一组详细功能和设计要求。
考虑设计过程如何配合为客户提供令人满意的产品所必须发生的所有功能以及在产品的整个生命周期中为产品提供服务也很重要。
事实上，重要的是考虑产品在使用寿命后如何处置。
影响产品的所有这些功能的总和有时被称为产品实现过程或PRP。
PRP中包含的一些因素如下：营销功能来评估客户的要求研究确定可在产品中合理使用的可用技术可以包含在产品中的材料和组件的可用性产品设计和开发性能测试设计文件供应商关系和采购职能考虑全球材料采购和全球营销参加工作的技能物理工厂和设施可用制造系统的能力生产计划和生产系统的控制生产支持系统和人员质量体系要求销售操作和时间表成本目标和其他竞争性问题客户服务要求产品在生产，操作和处置过程中的环境问题法律要求金融资本的可用性你可以添加到这个列表吗？您应该能够看到，产品的设计只是综合过程的一部分。
在本文中，我们将更加注意设计过程本身，但必须始终考虑设计的可生产性。
产品设计和制造过程设计的同时考虑通常被称为并行工程。
2.机械设计所需的技能产品工程师和机械设计师在日常工作中使用广泛的技能和知识。
这些技能和知识包含在以下内容中：素描，技术制图和计算机辅助设计材料的性质材料加工*和制造过程化学的应用，如腐蚀防护，电镀和喷漆静力学动力学材料的强度，运动学和机制流体力学，热力学和传热流体动力，电气现象的基本原理和工业控制材料和机械系统的实验设计和性能测试压力分析齿轮，皮带传动，链传动，轴，轴承，键，花键，联轴器，密封件，弹簧，连接（螺栓连接，铆接，焊接，粘接），电动机，直线运动等机械元件行为的专业知识装置，离合器和制动器创造力，解决问题和项目管理口头沟通，听力，技术写作和团队合作技巧3.功能，设计要求和评估标准第1节强调了在开始设计机械设备之前仔细确定客户的需求和期望的重要性。
机械工程专业英语课本翻译
Paragraph 4
• The austenitic stainless steels have the austenite structure retained at room temperature. • 奥氏体不锈钢在室温保留奥氏体结构。 • The austenite has the fcc structure and is stable above 910℃. • 奥氏体有面心立方结构， 910℃以上处于稳定状 态。 • This structure can occur at room temperature when it is stabilized by an appropriate alloy addition such as nickel. • 通过添加诸如镍等恰当的合金，这一结构能够在 室温下形成。
• •
•
• •
二、晶胞原子数：1/8×8+1/2×6=4（个）
三、原子半径：γ原子=四分之根号三a 四、致密度：0.74（74%）
体心立方晶格
• 体心立方晶格的晶胞中，八个原子处于立方体的角上，一个原子 处于立方体的中心，角上八个原子与中心原子紧靠。具有体心立方晶 格的金属有钾（K）、钛（Ti）、钼（Mo)、钨（W）、钒（V）、α铁（α-Fe，<912℃）等。 单位晶胞原子数为2
• Low carbon steel containing from 0.02 to 0.25 percent carbon, and they are very soft and can be used for bolts and for machine parts that do not need strength.
淬火
•
钢的淬火是将钢加热到临界温度Ac3（亚共析钢） 或Ac1（过共析钢）以上某一温度，保温一段时间， 使之全部或部分奥氏体[1]化，然后以大于临界冷却 速度的冷速快冷到Ms以下（或Ms附近等温）进行马氏 体（或贝氏体）转变的热处理工艺。 淬火的目的是使过冷奥氏体进行马氏体或贝氏体 转变，得到马氏体或贝氏体组织，然后配合以不同温 度的回火，以大幅提高钢的强度、硬度、耐磨性、疲 劳强度以及韧性等，从而满足各种机械零件和工具的 不同使用要求。也可以通过淬火满足某些特种钢材的 的铁磁性、耐蚀性等特殊的物理、化学性能。 淬火能使钢强化的根本原因是相变，即奥氏体组 织通过相变而成为马氏体组织（或贝氏体组织）。
机械专业中英文对照大全 机械工程师必备
机械专业英语词汇陶瓷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共轭曲线conjugate curve范成法generation method定义域definitional domain值域range导数\\微分differential coefficient求导derivation定积分definite integral不定积分indefinite integral曲率curvature偏微分partial differential毛坯rough游标卡尺slide caliper千分尺micrometer calipers攻丝tap二阶行列式second order determinant逆矩阵inverse matrix线性方程组linear equations概率probability随机变量random variable排列组合permutation and combination气体状态方程equation of state of gas动能kinetic energy势能potential energy机械能守恒conservation of mechanical energy动量momentum桁架truss轴线axes余子式cofactor逻辑电路logic circuit触发器flip-flop脉冲波形pulse shape数模digital analogy液压传动机构fluid drive mechanism机械零件mechanical parts淬火冷却quench淬火hardening回火tempering调质hardening and tempering磨粒abrasive grain结合剂bonding agent砂轮grinding wheel后角clearance angle龙门刨削planing主轴spindle主轴箱headstock卡盘chuck加工中心machining center车刀lathe tool车床lathe钻削镗削bore车削turning磨床grinder基准benchmark钳工locksmith锻forge压模stamping焊weld拉床broaching machine拉孔broaching装配assembling铸造found流体动力学fluid dynamics流体力学fluid mechanics加工machining液压hydraulic pressure切线tangent机电一体化mechanotronics mechanical-electrical integration气压air pressure pneumatic pressure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随机信号random signal离散信号discrete signal超声传感器ultrasonic sensor集成电路integrate circuit挡板orifice plate残余应力residual stress套筒sleeve扭力torsion冷加工cold machining电动机electromotor汽缸cylinder过盈配合interference fit热加工hotwork摄像头CCD camera倒角rounding chamfer优化设计optimal design工业造型设计industrial moulding design有限元finite element滚齿hobbing插齿gear shaping伺服电机actuating motor铣床milling machine钻床drill machine镗床boring machine步进电机stepper motor丝杠screw rod导轨lead rail组件subassembly可编程序逻辑控制器Programmable Logic Controller PLC电火花加工electric spark machining电火花线切割加工electrical discharge wire —cutting相图phase diagram热处理heat treatment固态相变solid state phase changes有色金属nonferrous metal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共轭曲线conjugate curve范成法generation method定义域definitional domain值域range导数\\微分differential coefficient求导derivation定积分definite integral不定积分indefinite integral曲率curvature偏微分partial differential毛坯rough游标卡尺slide caliper千分尺micrometer calipers攻丝tap二阶行列式second order determinant逆矩阵inverse matrix线性方程组linear equations概率probability随机变量random variable排列组合permutation and combination气体状态方程equation of state of gas动能kinetic energy势能potential energy机械能守恒conservation of mechanical energy 动量momentum桁架truss轴线axes余子式cofactor逻辑电路logic circuit触发器flip-flop脉冲波形pulse shape数模digital analogy液压传动机构fluid drive mechanism机械零件mechanical parts淬火冷却quench淬火hardening回火tempering调质hardening and tempering磨粒abrasive grain结合剂bonding agent砂轮grinding wheelAssembly line 组装线Layout 布置图Conveyer 流水线物料板Rivet table 拉钉机Rivet gun 拉钉枪Screw driver 起子Pneumatic screw driver 气动起子worktable 工作桌OOBA 开箱检查fit together 组装在一起fasten 锁紧(螺丝)fixture 夹具(治具)pallet 栈板barcode 条码barcode scanner 条码扫描器fuse together 熔合fuse machine热熔机repair修理operator作业员QC品管supervisor 课长ME 制造工程师MT 制造生技cosmetic inspect 外观检查inner parts inspect 内部检查thumb screw 大头螺丝lbs。
机械工程专业英语-007[10P][203KB]
![机械工程专业英语-007[10P][203KB]](https://img.taocdn.com/s3/m/0362fedeb14e852458fb57be.png)
2.
Q: When do 2 and 2 make more than 4?
A: When they make 22.
Humor
But the teacher cried
The six-year-old John was terribly spoiled . His father knew it, but his grandma doted on him. He hardly left her side. And when he wanted anything, he either cried or threw a temper tantrum. Then came his first day of school, his first day away from his grandmother's loving arms. When he came home from school, his grandma met him at the door. "Was school all right?" she asked, "Did you get along all right? did you cry?" "Cry?" John asked. "No, I didn't cry, but the teacher did!"
长句的译法
b）顺序法：英语长句的叙述层次基本上与汉语相同时，可以按英语的顺序 ，依次译出。如：
A broaching line which produces a completely broached (linking) rod and cap every 12 seconds comprises two linked standard Cincinnati (company name辛辛那提) chain broachers, one a 30 by 114 and the other a 30 by 120 machine, with specially designed automatic loaders, locating devices and work transfer equipment. 每隔12秒钟完成一副连杆体和连杆帽的全部拉削工序的拉削自动线，是由两台辛辛 那提普通链式拉床连结而成的。一台是30X114，另一台是30X120。自动线上备有 专用的自动上料、定位和工件输送装置。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
机械设计的过程中，设计和/或选择机械部件，并把它们放在一起，完成所需的功能。
当然，机器元素必须是兼容的，必须配合默契，必须执行安全和有效。
设计者必须考虑不仅性能的元件被设计在一个给定的时间，而且还与它的元素必须接口。
机械设计是设计和（或）选择机械组件和放在一起，完成所需的功能的过程。
当然，机元素必须是兼容的必须在一起，适合和必须执行安全和有效地。
设计器必须考虑不只在给定的时间，目前正在设计的元素，但它必须与界面的元素的表现。
机械设计是设计的过程和/或选择机械组分和汇集他们实现一个期望作用。
当然，机械零件一定是兼容的，必须一起很好适合，并且必须安全地和高效率地执行。
设计师必须考虑到时被设计的元素的不仅表现，而且它必须协调的元素。
机械设计是设计并且/或者选择机械组成部分和汇集他们的过程实现一个期望作用。
当然，机械零件一定是适合的，必须一起很好适合，并且必须安全地和高效率地执行。
设计师必须考虑到时被设计的元素的不仅表现，而且它必须协调的元素。