机械英语证书考试(PEC)—辅导词汇--机械设计及生产常用专业英语机械英语认证（MechanicalEngineeringEnglishCertification）是由AIRFORTRESS与LTS合办的行业类英语考试。考试内容覆盖：机械原理、机械工程设计、机械制造与生产、车辆工程等。主要考察机械工程类专业术语的阅读与理解。该系列考试采用题库式，可以随时在全国100多个计算机化考点进行考试。重点词汇：陶瓷ceramics合成纤维syntheticfibre电化学腐蚀electrochemicalcorrosion车架automotivechassis悬架suspension转向器redirector变速器speedchanger板料冲压sheetmetalparts孔加工spotfacingmachining车间workshop工程技术人员engineer气动夹紧pneumalock数学模型mathematicalmodel画法几何descriptivegeometry机械制图Mechanicaldrawing投影projection视图view剖视图profilechart标准件standardcomponent零件图partdrawing装配图assemblydrawing尺寸标注sizemarking技术要求technicalrequirements刚度rigidity内力internalforce位移displacement截面section疲劳极限fatiguelimit断裂fracture塑性变形plasticdistortion脆性材料brittlenessmaterial刚度准则rigiditycriterion垫圈washer垫片spacer直齿圆柱齿轮straighttoothedspurgear斜齿圆柱齿轮helical-spurgear直齿锥齿轮straightbevelgear运动简图kinematicsketch齿轮齿条pinionandrack蜗杆蜗轮wormandwormgear虚约束passiveconstraint曲柄crank摇杆racker凸轮cams共轭曲线conjugatecurve范成法generationmethod定义域definitionaldomain值域range导数\\微分differentialcoefficient求导derivation定积分definiteintegral不定积分indefiniteintegral曲率curvature偏微分partialdifferential毛坯rough游标卡尺slidecaliper千分尺micrometercalipers攻丝tap二阶行列式secondorderdeterminant逆矩阵inversematrix线性方程组linearequations概率probability随机变量randomvariable排列组合permutationandcombination气体状态方程equationofstateofgas动能kineticenergy势能potentialenergy机械能守恒conservationofmechanicalenergy动量momentum桁架truss轴线axes余子式cofactor逻辑电路logiccircuit触发器flip-flop脉冲波形pulseshape数模digitalanalogy液压传动机构fluiddrivemechanism机械零件mechanicalparts淬火冷却quench淬火hardening回火tempering调质hardeningandtempering磨粒abrasivegrain结合剂bondingagent砂轮grindingwheelAssemblyline组装线Layout布置图Conveyer流水线物料板Rivettable拉钉机Rivetgun拉钉枪Screwdriver起子Pneumaticscrewdriver气动起子worktable工作桌OOBA开箱检查fittogether组装在一起fasten锁紧(螺丝)fixture夹具(治具)pallet栈板barcode条码barcodescanner条码扫描器fusetogether熔合fusemachine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cosmeticinspect外观