Chapter One Mechanics Components第一章机械构件Lesson One第一课齿轮Words and Expressions1.spur gear 直齿轮2.thermal expansion 热膨胀3.lubrication 润滑4.backlash 倾向间隙5.the pitch circles 节圆6.space width 间隙宽度7.instrument gear 仪表齿轮8.the split gear 拼合齿轮9.helical gear 斜齿轮10.pitch-line velocities 节线速度11.an axial thrust 轴向推力12.blank 坯件13.double-helical gears 人字齿轮14.non-intersecting 不相交的15.worm gears 蜗轮蜗杆16.bevel gears 伞齿轮17.crossed-axis 交叉轴18.nut 螺母19.screw 丝杠，螺钉rge rations 大速比21.parallel-shaft gears 平行轴齿轮22.single-thread worms 单线蜗杆23.lead angles 导角24.multiple-thread worms 多线蜗杆25.hypoid gear 偏轴伞齿轮26.rolling Cones 滚锥27.involutes 渐开线Lesson Two Rolling Guides and Bearings第二课滚动导轨和轴承Words and Expressions1.rolling guides (rolling guideways) 滚动导轨2.plain guides 普通导轨3.a roller chain 滚柱链4.cape 保持架5.guide surfaces 导轨面6.stiffness 刚性7.load-carrying capacity 载荷能力8.rolling-contact bearings 滚动轴承9.ball bearing 球轴承10.an inner race 内座圈11.an outer race 外座圈12.separator 隔离环13.curvature 曲率14.notch 凹槽15.thrust load 推力负载16.a radial ball bearing 经向球轴承17.sections 断面18.an axial-thrust bearing 轴向推力轴承19.washer 垫圈20.roller bearing 滚子轴承21.tapered 锥形的22.spherical 球面的23.retaining shoulder 定位肩24.needle bearing 滚针轴承25.tapered roller bearings 锥形滚子轴承26.spherical roller bearings 球面滚子轴承27.concave 凹面的28.convex 凸面的Lesson Three Clutches第三课离合器Word and Expressions1.coaxial (coaxial) 网轴的2.a rotatable shaft (driven shaft) 从动轴3.a rotating shaft (driving shaft) 主动轴4.friction clutches 磨擦离合器5.ring-shaped 环形的6.spring 弹簧7.a conical spool 锥形短管轴8.coefficient of friction 磨擦系数9.facing 衬片10.dry clutches 干式离合器11.wet clutches 湿式离合器12.a multiple-plate disc clutch 多片式圆盘离合器13.spline 花键14.pivot 枢轴15.magnetic clutches 电磁离合器16.an annular gap 环状间隙17.powder iron 铁粉18.graphite 石墨19.direct-current control coil 直流控制线圈20.slippage 滑动Lesson Four Ball screw and nuts第四课滚珠丝杠螺母副Words and Expressions1.precision ball screw assembly 精密滚珠丝杠副2.auto-drafting machines 自动制图机3.valves 阀门4.metallurgical machinery 冶金机械5.satellite tracers 卫星跟踪仪6.steering gears 转向机构7.stick-slip 爬行8.rolling guideways 滚动导轨9.recirculating-ball screw 循环滚珠丝杠10.feed mechanisms 进给机构11.wear 磨损12.damping property 阻尼性13.tangential 切向的14.circumferential 圆周的15.thread pitch 螺距16.a ball-return track 回珠滚道17.a return tube 回珠管18.shock-free 无冲击19.stiffness 刚性20.freedom from 免除21.pre-load 预载Chapter Two Constructure and Technology of Machine Tools第二章机床结构及工艺Lesson One Size, Bed and Tailstock of Engine lathe第一课普通车床的尺寸、床身及尾架Words and Expressionsthe (turning lathe, engine lathe, tuning machine) 车床2.the live center point 活项尖3.swing 回转直径4.bed 床身5.ways 导轨6.Carriage 床鞍7.Cross-feed slide 横进给刀架8.Headstock 主轴箱9.tailstock. 尾架10.rack 齿条11.pinion gear 小齿轮12.handwheel 手轮13.hardened steel 淬火钢14.flame-hardened ways 火焰淬火导轨15.the distance between centers 项尖距16.taper shank 锥形车削17.tailstock spindle 尾架套筒18.taper shank 锥柄19.three-jaw chuck 三爪卡盘20.roller vearing 滚子轴承21.lubrication 润滑22.wordpiece 工件Lesson Two Headstock of Engine Lathe第二课普通车床的主轴箱Words and Expressions1.spindle 主轴、轴心2.taper sleeve 锥套3.live center 活项针4.the threaded spindle nose 螺纹主轴头5.the cam lock spindle nose 凸轮锁紧主轴头6.the long taper key drive spindle nose 长锥键传动主轴头7.flange 法兰盘8.Chuck 卡盘9.Cam lock stud 凸轮锁紧短轴10.Collar 轴环、套圈11.faceplate 花盘12.keyway 键槽13.back gear 背轮14.bull gear 大齿轮15.sliding pit 滑动槽16.groove 槽17.step pulley 塔轮18.drive pulley 主动轮19.driven pulley 被动轮20.gear box 齿轮变速箱Lesson Three Carriage, Feeding and Threading Mechanism of Engine Lathe第三课普通车床的床鞍、进给和车螺纹机构Words and Expressions1.Saddle 鞍座2.Apron 滑板箱3.Cross slides 横向滑板，横刀架pound rest 复合刀架（转盘）5.tool post 小刀架6.tool holder 刀夹7.Clutch 离合器8.Facing 车端面9.Cutoff 切断10.power feed 机动进给11.split nut (half-nut) 开合螺母12.dovetail way 燕尾导轨13.micrometer collar 千分尺套圈14.rocker 摇柄15.threading 车螺纹16.gear box 齿轮箱17.ring collar 刻度环18.an index chart 指示图19.lead screw 丝杠20.feed rod 光杠21.Cross-feed 横进给22.Longitudinal feed 纵向进给23.acme threads 梯形螺纹24.right-hand thread 右旋螺纹25.left-hand thread 左旋螺纹Lesson Four Word-holding attachments for the lathe and Rough turning 第四课车床工件夹紧附件和粗车Words and Expressions1.attachment 附件2.four-jaw independent chuck 四爪单动卡盘3.Collar chuck 套爪卡片4.follower rest 跟刀架5.reducing sleeve 中心架the dog 异径套筒7.bent-tail dog 车床卡爪8.Rough turning 曲尾卡爪9.Rough turning 粗车10.white lead 白铅粉11.Center height 中心高12.end relief 副后角13.Clearance angle 后角、留隙角14.back rake 纵向前角15.tangent 切线16.caliper 卡尺17.trial cut 试切18.overload 过载Lesson Five Milling Shaper, Planer and Grinding Machines第五课铣床、刨床和磨床Words and Expressionsling machines 铣床ling cutter 铣刀3.arbor 刀杆4.spacer 垫圈、垫片5.bushing 套6.yoke 支座7.starting lever 起动手柄8.Knee 升降台9.elevating screw 升隆丝杆10.index head 分度头11.foot stock 分度头支座12.Universal Milling Machine 万能铣床13.Shaper 牛头刨床14.plane 龙门刨床15.ram 滑轨16.vise 台钳17.fixture 夹具18.notched wheel or ratchet 棘轮19.pawl 棘爪20.cross rail 横梁21.grinding machine 磨床22.grinding wheel 砂轮23.finish 光洁度24.Cutter grinder 工具磨床25.surface grinder 平面磨床26.centreless grinder 无心磨床27.internal grinder 内圆磨床28.external grinder 外圆磨床29.Wheel head 磨头Lesson Six Machine Tool Tests, Accuracy checking and Maintenance 第六课机床试验，精度检验及保养Words and Expressions1.acceptance tests 验收试验2.certificate data 检验证数据3.geometrical accuracy 几何精度4.surface roughness 表面粗糙度5.vibration-proof 防振6.straightness 平直度7.flatness 平面度8.upright 立柱9.base plate 底板10.deviation 偏差11.parallelism 平行度12.squareness 垂直度13.servicing 维修14.inspection 检查15.repairs 检修16.maintenance 保养17.rapidly wearing components 易损件18.post-inspections repairs 后检查修理19.periodic repairs 定期检修20.routine servicing 日常维修21.general overhaul 大修22.restoration 修复Chapter Three Modern Manufacturing Engineering &Development 第三章现代制造技术及其发展Lesson One The development of NC第一课数字控制的发展Words and Expressions1.vacuum tube 真空管2.electrical relay 继电器3.interface 接口4.integrated circuit(IC) 集成电路5.hardware 硬件6.Read Only Memory(ROM) 只读存储器7.Machining Center 加工区8.Turning Center 车削中心9.electrical discharge machining 电火花加工10.drafting 制图11.printed circuit(PC) 印刷电路12.robot 机械手，机器人13.Subroutine 子程序14.tape reading 纸带读数15.alarm 报警16.diagnostic message 诊断信息17.Constant surface speed control 恒线速控制18.polar coordinate 极座标19.interpolation 插补20.microprocessor 微处理机21.servo drive 伺机服驱动22.pre-amplifier 前置放大器23.point-to-point 点位24.contouring 轮廓控制25.bubble memory 磁泡存储器26.macro 宏指令27.canned cycle 固定循环Lesson Two Open-loop and closed-loop servo drives第二课开环和闭环伺服驱动Words and Expressionsrmation command section 信息命令段2.punched tape code 穿孔带码3.magnetic tape code 磁带码4. input data 输入数据5.open-loop 开环6.closed-loop 闭环7.automatic washing machine 自动洗衣机8.power supply level 电源电平9.feedback 反馈10.resolution 清晰度11.deterioration 磨损12.discrepancy 差误13.subtract logic 减法逻辑mand position counter 指令位置计数器15.drive signal amplifier 伺服信号放大器16.transducer 传感器17.synchro 同步机18.shaft digitizer 轴数字读出器19.analog 模拟量20.digital 数字式21.self-correcting 自动修正22.light interruption 光中断23.photo cell 光电管24.electric pulse 电脉冲25.increment 增量26.encoder 编码器27.binary 二进制28.Gray code 格雷码29.Segmentation 扇区Lesson Three Hydraulic motors and servo motors第三课液压马达和伺服电机Words and Expressions1.hydraulic motor2.oil sump3.oil pressure pump4.hydraulic cylinder5.valve6.oil flow7.hydrostatic drives8.variable-delivery pump9.piston10.reciprocating movement11.supply line12.return line13.the filling cycle14.servomotors15.input command signals16.step-by-step motors17.Phase-shifted18.Amplifier19.Contact20.Electromagnet。