机械英文专业翻译.doc

一、 汉译英载荷：load内应力internal stress灵敏度sensitivity疲劳强度fatigue strength铣床milling machine供水系统water supply system进料速度feedrate闭合序列closed sequence专家系统expert systemCAE computer aided engineering二、 英译汉impurity杂志machinability加工性能sound judgement正确的判断力dynamic load动载荷lathe车床vertical support垂直支撑speed indicator速度表machine vision机器视觉manipulator操纵器三、 句子汉译英1、 金属和合金的差异一般很难界定。The distinction between a metal and a nonmetal is not always clear out.2、 钢的冷成型性是由它的拉伸强度与延展性共同决定的。The cold-formability of steel is a function of its tensile strength combined with ductility.3、 当承载时，材料将发生变形，变形量取决于载荷的大小。A material tends to change or changes its dimensions when it is loaded ,depending upon the magnitude of the load.4、 机电一体化是一个用于描述机械和电子工程集成的术语。“Mechatronics” is a term to describe the integration of mechanical and electronical engineering.5、 机器人执行的工作可分为两类：危险性工作和重复性工作。Jobs performed by robots can be devided into two major categories :hazardous jobs and repetitive jobs.6、 CIM系统不仅包含生产控制系统，还有生产计划和管理系统。CIM technology will be used implement plant-wide integration ,and intelligent maintenance system.四、 句子英译汉1、 The most important by far is iron, on which are based the ubiquitous steels and cast irons.2、 The properties of the final part (hardness, strength, and machinability), rather than properties required by forging, govern the selection of material.3、 Logically speaking, once the elastic limit is exceeded, the metal should start to yield, and finally break, without any increase in the value of stress.4、 A machine control system is a combination of electronic circuitry sensing devices, and mechanical components.5、 Grinding operation are used to impart a high-quality surface finish on the workpiece.6、 The tensile strength of a material is obtained by dividing the maximum load, which the specimen bears by the area of cross-section of the specimen.7、 The purpose of the design calculation is to attempt to predict the stress or deformation in the part.8、 Automatic control systems are sometimes called servomechanisms. which may be a complex array of electromechanical components or a simple mechanical device.9、 Fluid mechanics is the branch of engineering science that is concerned with forces and energies generated by fluids at rest and in motion.10、 Except for machine vision and software,Japanese basic research was comparable to the United States.五、 段落翻译Machinability is not determined by hardness alone,but by the youghness,microstructure,chemical composition,and tendency of a me没写完忠才(554308685) 00:02:16Machinability is not determined by hardness alone,but by the toughness,microstructure,chemical composition,and tendency of a metal to harden under cold work.In the misleading expression “too hard to machine” , the work “hard” is usually meant to be synonymous with “difficult”. Many times a material is actually too soft to machine readily. Softness and toughness may cause the metal to tear and flow ahead of the cutting tool rather than cut cleanly. Metal that are inherently soft and tough are sometimes alloyed to improve their machinability at some sacrifice in ductility. Examples are use of lead in brass and of sulfur in steel. 加工性不仅仅只由硬度决定，它还由韧性，微观结构，化学成分和在冷加工下金属所呈现的硬化特性所决定。在容易混淆的表示“难加工”中，难与困难同义。许多时候，因为材料过软而难于稳定加工。材料柔软性和韧性能够产生金属撕裂，使金属在完成切削前流动至刀具前端。柔软的金属往往会被加入合金从而牺牲它的延展性来提高加工性能。如黄铜中加入铅钢中加入硫概念在控制系统中发