有英文定义的精准机械词汇(a-b)

Categorized | 翻译文章, 翻译资源, 资源共享分享有英文定义的精准机械词汇（a-b）发布日期：2010年8月30日/?p=2059497A/C 对角宽度across cornersA/D 模数转换器Analog to Digital ConverterA/F 对边宽度across flatsAA 汽车协会Automobile AssociationAAA 美国汽车协会American Automobile AssociationAAA 澳大利亚汽车协会Australian Automobile AssociationAABM 美国电池制造商协会Association of American Battery ManufacturersAAC 辅助空气控制阀Auxiliary Air Control ValveAAIA 汽车售后工业协会Automotive Aftermarket Industry AssociationAAM 汽车制造商联盟Alliance of Automobile ManufacturersAAMA 美国汽车制造商协会American Automobile Manufacturers’ Association AAMVM 美国汽车制造者协会American Association of Motor Vehicle ManufacturersA-arm A形摆臂a suspension linkage in the shape of AAAS 吸气系统air aspirator systemAbbe comparator 阿贝比长仪a length measuring device based the comparator principle used in precision metrology and for spectra evaluationABCV 空气泄放控制阀Air Bleed Control ValveABDC 下止点后after bottom dead-centeraberration 偏差a deviation from normal standardsABG 掺酒精的汽油Alcohol Blended GasolineABN 空气传播的噪音AirBorne NoiseABPV 空气制动比例分配阀Air Brake Proportioning Valveabradant 磨料不如“abrasive”常用abrade 磨to grind or roughen up a surface by rubbingabrade 磨损to wear sth. away or be worn away by frictionabrasion 磨损the process of wearing away by frictionabrasion 磨耗不如“磨损”常用abrasive 磨料a substance such as pumice or emery that is used to smooth or polish a surface by grindingabrasive 磨粒不如“磨料”常用abrasive belt 砂带a coarse belt for grindingabrasive blast cleaning 喷砂清理cleaning process with gusts of fine particles abrasive cleaner 擦洗剂a cleaning paste with some hard gritabrasive disc 研磨盘a circular plate (often made of plastic with hard grit embedded) for grinding or sandingabrasive paper 砂纸sandpaper (a paper upon which sand or hard grit has been glued)for sanding or grindingABS 防抱死制动系统anti-lock brake systemabsorber 吸收器something which converts the dynamic energy of motion into potential energyabsorption capacitor 吸收电容器a capacitor connected across a spark gap to reduce the dischargeabsorption dynamometer 吸收功率计a measuring device which absorbs and dissipates powerABSV 空气旁通电磁阀Air Bypass Solenoid Valveabutment 邻接the state of touching or being adjacent to an object or piece of land along one sideABV 空气旁通阀air bypass valveACC 自适应巡航控制器adaptive cruise controllerACCC 空调离合器压缩机信号Air Conditioner Clutch Compressor Signal accelerator 油门a pedal or other control mechanism used to cause a vehicle to increase speedaccelerator pedal 油门踏板a pedal that controls the throttle valveAccord 雅阁a brand name of HondaAckerman steering 梯形转向机构“the steering system used in most motor vehicles, in which the wheels swivel at each end of the axle, instead of the whole axle beam swiveling at its central point”ACL 空气滤清器air cleanerACL 自动底盘润滑Automatic Chassis Lubricationacme thread 梯形螺纹a common screw thread profile that offers high strength with ease of machining and assemblyACORC 澳大利亚辛烷值要求合作委员会Australian Cooperative Octane Requirement Committeeacorn nut 螺帽a nut that has a domed top so that it prevents contact with the external threadACPSW 空调压力开关Air Conditioning Pressure SwitchACR4 空调制冷剂回收再生充注“Air Condi tioning Refrigerant, Recovery, Recycling, Recharging”across corners 对角宽度the distance on a nut or bolt head from one corner to the opposite corneracross flats 对边宽度the distance on a nut from one flat surface to the opposite flat surfaceACRS 气垫型保护装置Air Cushion Restraint SystemACS 空调系统air conditioning systemACT 进气温度air charge temperatureACT 主动控制技术active control technologyactive 主动的Study on Control Technique for Vehicle Active Suspension System active braking time 有效制动时间the length of time (excludi ng the driver’s reaction time) a vehicle takes to come to a complete stop after the brakes are applied active-lifestyle wagon 运动版旅行车不如“sport tourer”常用ACTS 进气温度传感器air charge temperature sensoractual cash value 实际现金价值the amount of money a dealer has invested in the purchase of a used vehicle plus any additional costs to repair the unit in order to get it ready for resaleactuate 开动to put into action or mechanical motionactuating lever 操作杆a triggering device used to bring something into operation ACV 空气控制阀air control valveadapter carburetor 化油器附加器a device attached to a gasoline carburetor which permits an internal combustion engine to run either on gas or liquefied petroleum gas adapter plate 转接板a flat piece of plate which is placed between two different parts in order to join themadapter ring 接合环带多层密封件切槽的环adapter sleeve 紧固套a mechanical fixture within the adapter body that aligns and holds two terminated fiber connectorsadaptive cruise controller 自适应巡航控制器“an extension of an ordinary cruise controller, in addition to maintaining a desired set velocity, an ACC can also maintain a desired time gap to the vehicle ahead”addendum 齿顶高height of tooth above pitch circle or the radial distance between the pitch circle and the top of the toothaddendum circle 齿顶圆the circle on a gear passing through the tops of the teeth addendum modification coefficient 变位系数the ratio of change of a modified tooth ADF 自动测向automatic direction findingadhere 附着to stick or be glued to somethingadhesion 附着力the ability to make firm contact without skidding or slipping adjustable spanner 活动扳手an open-ended wrench with adjustable (usually smooth) jawsadjustable wrench 活动扳手an open-ended wrench with adjustable (usually smooth) jawsadjuster 调节器a device for moving something into the correct position or into a different positionadjusting gauge 整定仪表a tool used to determine the small distance between two parts so that they can be brought within specificationsadjusting screw 调整螺钉“a small screw found on carburetors, brakes, or headlights which change the way something operates, such as increasing or decreasing the amount of fuel entering the engine”adjusting shim 调整垫片a thin washer or plate which reduces or increases the clearance between two componentsadjusting sleeve 调整套a small threaded cylinder on the end of the tie rod which shortens or lengthens the rod to make changes in the Toe-in and Toe-outADP 风动泵air-driven pumpadvance-to-return time ratio 行程速比系数coefficient of travel speed variation AECD 辅助排放控制装置Auxiliary Emission Control DeviceAEES 俄歇电子能谱仪Auger electron energy spectrometeraerodynamic 气动的“空气动力的”的简称aerodynamic 空气动力的“designed to reduce air resistance, especially to increase fuel efficiency or maximum speed”aerodynamic drag 气动阻力the resistance of the air to forward movement aerodynamic heating 气动加热“the heating of a vehicle passing through the air, caused by friction and compression of air”aerostatic bearing 空气静压轴承“a bearing of none contact, having higher linear precision and without any vibration as usually caused by coarse surfaces”aerotonometry 气体张力测量法measurement of the tension of a gasAEV 自动膨胀阀automatic expansion valveAFC 空气流量控制Air Flow controlAFR 空燃比air-fuel ratioAFS 空气流量传感器Air Flow Sensoraft 车尾the back of a vesselafterburner 加力燃烧室a device in the exhaust system of an internal-combustion engine for removing or rendering harmless potentially dangerous components in the exhaust gasesafterburning 加力燃烧“persistence of the combustion process beyond the period proper to the working cycle, i.e., in to the expansion period”aftercooler 后冷却器a heat exchanger which cools air that has been compressed; used on turbocharged enginesaftercooling 后冷却the process of cooling the engine intake air after the turbocharger and prior to introduction into the cylinderaftermarket 售后市场all products and services used in the repair and maintenance of vehicles after the vehicle has been soldaftermarket equipment 后装配件accessories and replacement parts added to a vehicle after it has been soldAFV 替代燃料车Alternative-Fuel VehicleAGA 美国燃气协会American Gas Associationageing 老化不如“aging”常用AGMA 美国齿轮制造商协会American Gear Manufacturers AssociationAGVS 自动导引车系统Automated Guided Vehicle SystemAHEM 液压设备制造协会Association of Hydraulic Equipment Manufacturers AHFSS 空调/暖气功能选择开关Air-conditioning/Heater Function Select Switch AHP 加速踏板脚后跟触地点Accelerator Heel PointAIADA 美国国际汽车经销商协会American International Automobile Dealers AssociationAIAM 国际汽车制造商协会Association of International Automobile Manufacturersaimer 校准器a tool for aiming a vehicle’s headlightsaiming 校准adjusting the direction of the headlight beams to shine without blinding oncoming traffic and yet providing the maximum illumination whether in low beam or high beamAIR 空气喷射反作用器Air Injection Reactorair aspirator system 吸气系统a passive air injection system that uses a one-wayvalve instead of an air pump to introduce extra air into the exhaust streamair aspirator valve 吸气阀a device that uses a diaphragm to draw air into the exhaust system to reduce emissionair brake 空气制动器a type of brake used on large vehicles replacing hydraulic fluid with compressed airair brake cylinder 气压制动缸a cylinder designed for the air brake systemair brake valve 气制动阀a valve designed for the air brake systemair bypass valve 空气旁通阀a backfire-suppressor valve used in air injection systemsair cap 空气帽a device used in thermal spraying which directs the air pattern for atomizationair cell 空气室“a small auxiliary combustion chamber used in certain types of compression-ignition engines, for promoting turbulence a nd combustion”air charge temperature 进气温度the temperature of the air being forced into the carburetor or fuel injection systemair chipper 风铲This leads to breakage of the chisel holder for the air chipperair cleaner 空气滤清器“a device which filters the air entering the engine to remove airborne impurities, dust, dirt, and bumblebees”air cushion 气垫a mechanical device using confined air to absorb the shock of motionair dam 气坝an attachment which is usually located below the front bumperair deflector 导风板a panel which is positioned at an angle on the roof of a truck or on the front of the hood to cause the air to flow over the vehicleair diffuser 空气扩散器air distribution outlet or grille designed to direct airflow into desired patternsair drying 气干the most common form of curing a coating in which drying takesair duct 风管a duct for air to enter or drainair gage 气动测量仪“a variable, non-contact pneumatic instrument that uses pressurized air to inspect the inside diameter of a hole”air hammer 空气锤a hammer in which compressed air is utilized for producing the impacting blowair hole 通风孔a hole to allow the passage of airair horn 进气喇叭口a horn-shaped air intake of a carburetorair intake 进气口“the opening through which air enters a component such as the carbureto r, fuel injection system, radiator, heating system, or ventilation system”air intake filter 进气滤清器“a device composed of cellulose, woven fabric that removes solid particles such as dust, pollen and other particles from the air”air pressure regulator 气压调节器a regulator that is intended to control the air supply pressure to a consumer and keeping it invariable independent of air consumptionair pump 空气泵a device that supplies the fresh air needed by the air injection systemair ratchet wrench 气动棘轮扳手an automotive air tool that is basically an air powered socket setair regulator 空气调节器the part of a pneumatic inspection system by which pressurized air is controlledair shutter 调风门an adjustable device for varying the size of the air inlet(s) regulating primary or secondary airair spring 空气弹簧a mechanical device using confined air to absorb the shock of motionair tank 储气罐a tank for the storage of gasairbag 气囊a safety device in an automobile consisting of a bag that automatically inflates on impact to protect the occupant of the seatairbox 空气箱the container which holds the air filterair-cooled 风冷的cooled by a flow of airair-driven pump 风动泵a pump operated by an air motor supplied with air from an air pressure tank maintained under pressure by an air compressorairflow 气流“a flow of air, esp around a moving vehicle”air-fuel ratio 空燃比the mass ratio of air to fuel present during combustionair-inlet valve 进气阀“in a heating/air-conditioning system of a motor vehicle, a valve in the plenum blower assembly that permits selection of either inside or outside air”airlock 气阻“an obstruction to the flow of a liquid in a pipe, caused by a bubble of air”air-slip forming 气滑成型a vacuum forming process utilizing an air cushion to prevent the mold from contacting the sheet until the end of its travelair-switching valve 空气转换阀“a valve in an air injection system that senses intake manifold vacuum and during heavy loads, dumps part of the air pump output to the air cleaner to reduce the air pressure”airtight 气密的not allowing air in or outairtightness 气密性the quality of being airtightAIV 空气喷射阀Air Injection Valvealign 对准“to bring (components or parts, such as the wheels of a car) into proper or desirable coordination or relation”aligning stiffness 回正刚度the rate of change of the aligning torque with respect to change in slip anglealignment 对准“the arrangement of a machine’s components so that they are “”lined up”” according to design requirements”Allen key 内六角扳手“a tool in the form of an L-shaped rod, hexagonal in cross section”Allen screw 内六角螺钉a screw with a hexagonal recess in its head allowing it to be turned using an Allen wrenchAllen wrench 内六角扳手“a tool in the form of an L-shaped rod, hexagonal in cross section”alligator 鳄式破碎机“any of various tools or machines having adjustable toothed jaws, used for gripping, crushing, or compacting”alligator wrench 鳄式扳手for fasteners with square headsallowable stress 许用应力the maximum force per unit area that may be safelyapplied to a solidallowance 余量amount of variation allowedall-wheel drive 全轮驱动a type of drive wherein all the wheels are utilized as active driving wheels for greater control in challenging road conditionsALSC 汽车照明安全委员会Automotive Lighting Safety Councilalternative-fuel vehicle 替代燃料车a vehicle powered by a fuel other than gasoline or dieselalternator 交流发电机“a device that generates alternating current, especially in a car”amphibian 水陆两用车辆a flat-bottomed motor vehicle that can travel on land or waterAMT 自动机械变速器Automated Manual Transmissionanabatic wind 上坡风a wind which blows up a steep slopeanalogy 比拟e.g. sand heap analogyanchor bolt 地脚螺栓a bolt that is used to attach objects or structures to concrete anchor nut 托板螺母a nut in form of a tapped insert forced under steady pressure into a hole in sheet metalandroid 人形机器人如科学幻想小说中的automatonangle of screw thread 螺纹截形角helix angle at the pitchangle of thread 螺纹牙形角“the angle occurring between the sides of a screw thread, measured in an axial”angular contact thrust bearing 角接触推力轴承公称接触角大于45°但小于90°的推力滚动轴承angular momentum 角动量“the momentum that a body has due to its rotation about an axis, calculated as the product of its mass and its angular velocity”angular velocity ratio 角速比the ratio obtained when the angular velocity of the rotary valve is divided by the angular velocity of the crankshaftantidazzle 防眩的not dazzling oncoming trafficanti-dive 防潜prevention of front diving under brakingantifriction bearing 减摩轴承any bearing capable of reducing frictionantilock 防抱死的describes an electronically controlled braking system that prevent the vehicle’s wheels from locking if the driver brakes very suddenlyantiroll bar 防侧倾稳定杆“a cross-mounted metal bar incorporated in the suspension system of a motor vehicle, designed to prevent the vehicle from swinging dang erously or overturning”antirust 防锈的preventing the formation of rustanti-squat 防蹲preventing rear squatting under accelerationantisway bar 防侧倾稳定杆不如“antiroll bar”常用anvil block 砧座a solid single semi-steel casting weighing approximately 20 times the nominal size of the hammer or tupA-pillar A柱the roof support on either side of a vehicle’s windshieldapplied load 外加载荷“an external load imposed upon a reacting structure or a required force for opposing, supporting and/or reacting”approach 切入量为完成切入过程所必须附加的行程长度approach angle 接近角the angle at which a line drawn from the leading part of the vehicle’s bodywork and touching the front tyre meets the groundAPRA 汽车零件修复工作者协会Automotive Parts Rebuilders Associationapron 挡板a shield or plate attached to a machine that protects the user from flying debrisAQIRP 美国汽车油气质量改进研究计划Automotive Oil Air Quality Improvement Research Programaquaplaning 滑水不如“hydroplaning”常用arbor 心轴a rotating shaft or mandrel on which a workpiece is fitted for machining arbor press 手扳压机“a small hand operated press, usually used to do smaller jobs, such as staking, riveting, installing and removing bearings and other press fit work”arbour 心轴a rotating shaft or mandrel on which a workpiece is fitted for machining arc of action 作用弧arc of the pitch circle through which a tooth travels from the first point of contact with mating tooth to the point where contact ceasesarc of approach 渐近弧arc of the pitch circle through which a tooth travels from the first point of contact with the mating tooth to the pitch pointarc of recess 渐远弧arc of the pitch circle through which a tooth travels from its contact with the mating tooth at the pitch point to the point where its contact ceases arc strike 弧击accidental arc start outside the weld beadArchimedean screw 阿基米德螺旋泵“an ancient apparatus for raising water, consisting of either a spiral tube around an inclined axis or an inclined tube containing a tight-fitting, broad-threaded screw”Archimedes’ screw 阿基米德螺旋泵不如“Archimedean screw”常用area moment of inertia 面积惯性矩the second moment of area around a given axis ARI 空调与制冷学会air-conditioning and refrigeration institutearticulate 把…分节to separate into jointed segmentsarticulated 铰接式made up of two or more sections connected by a joint that can pivotarticulated robot 关节型机器人a robot with rotary jointsas-fitted drawing 装配竣工图a drawing as amended after completion of an industrial facility in order to provide an accurate record of the details of the entire installation in their final formASI 执行器传感器接口actuator sensor interfaceASME 美国机械工程师学会American Society of Mechanical Engineers assembler 装配工a person that puts together parts of a machine or piece of equipment when it is being builtassembly 总成a group of machine parts that fit together to form a self-contained unitAssur 阿苏尔“阿苏尔杆组”的发明者ASV 空气转换阀air switching valveATDC 上止点后After Top Dead CenterATF 自动传动液Automatic Transmission FluidATS 空气温度传感器air temperature sensorATV 全地形汽车All-Terrain Vehicleauger 螺旋钻a hand tool with a bit like a corkscrewauger bit 麻花钻头“螺旋钻头”的俗称auger bit 螺旋钻头“a bit having a square tang, fitted into and rotated by a brace; for drilling or boring”authorized service shop 特约维修站All repairs would have to be done by an authorized service shopauto 汽车short for automobileauto hoist 升车机a machine for lifting automobilesautomaker 汽车制造商a manufacturer of motor vehiclesautomata 自动机the plural form of automatonautomated 自动化的operated by automationautomated guided vehicle system 自动导引车系统a computer-controlled system that uses pallets etc to transport workpieces to numerically controlled machine tools for moving in preset pattern to ensure a rapid and accurate contactautomatic transmission 自动变速器a transmission system for motor vehicles in which changes of gear are made automatically in response to the speed of the vehicle automatic transmission fluid 自动传动液the fluid used in vehicles with self shifting or automatic transmissionsautomaticity 自动化程度the degree of being automaticautomaton 自动机a mechanical device operating under its own hidden power automobile 汽车“a road vehicle, usually with four wheels and powered by an internal-combustion engine, designed to carry a small number of passengers”automotive 汽车的relating to or involving motor vehiclesautomotive engineering 汽车工程“a branch of vehicle engineering, incorporating mechanical, electrical, electronic, software and safety engineering into the design, manufacture and operation of automobiles”autoresonance 自共振AUTOSAR 汽车开放系统架构Automotive Open System Architecture autothermic piston 抗热变形活塞an aluminum piston in which steel or alloy inserts are cast to control expansion of the piston skirtA VRO 汽车修复工作者协会Association of Vehicle Recovery OperatorsAWD 全轮驱动all wheel driveaxial 轴向的in the direction of the axisaxial force 轴向力a force directed along the longitudinal axis of a bodyaxial plane 轴面in a pair of gears it is the plane that contains the two axesaxial runout 轴向摆差“the total amount, along the axis of rotation, by which the rotation of a cutting tool deviates from a plane”axial runout 轴向偏摆disalignment that describes a workpiece when one end is concentric and the other is notaxial-piston pump 轴向活塞泵a type of piston pump that uses contact between a swash plate and rotating pistons to convert rotary motion to linear motionaxle 轮轴a spindle on which one or more wheels revolveaxle 轴a shaft on which a rotating member revolvesaxle 桥“a shaft on which a wheel or set of wheels revolves, especially a shaft underthe body of a vehicle that connects a pair of wheels”axle bracket 轴架a bracket for an axle of vehicleaxle end 轴端the end of an axleaxle housing 桥壳one of the significant components that lead to great performance of the vehicleaxle nut 车轴螺母a nut that holds the hub to the caraxle ratio 驱动桥速比a ratio of the speed in revolutions per minute of the drive shaft to that of the drive wheelsaxle shaft 半轴“a single rotating shaft, on either side of the differential, which delivers power from the final drive assembly to the drive wheels”axle spread 轴距longitudinal distance between the centers of the foremost and rearmost axles of axle unitaxode 瞬轴面axial surfaceaxonometric 轴测的“designating a method of projection in which a 3D object is represented by a drawing having all axes drawn to exact scale, resulting in the optical distortion of diagonal s and curves”axonometry 轴测法measurement of or by axesback cone 背锥“(of a bevel or hypoid gear) an imaginary cone tangent to the outer ends of the teeth, with its elements perpendicular to those of the pitch cone”back gear 背齿轮a set of gears that reduces the spindle speed in halfback pressure 背压pressure due to a force that is operating in a direction opposite to that being consideredback seat 后座a seat at the back of a vehicleback view 后视图a view from the back of somethingbackdigger 反铲挖掘机an excavator whose shovel bucket is attached to a hinged boom and is drawn backward to move earthbackfire 回火“n&vi, an explosion of unburnt gases in the exhaust system.a premature explosion in a cylinder or inlet manifold”backhoe 反铲an attachment consisting of a hinged scoop attached to a jointed mechanical arm that drags the scoop back toward the cab from which it is operated backhoe loader 反铲装载机“a tractor, fitted with a shovel/bucket on the front and a small backhoe on the back”backing line 前级管路真空泵等的backing vacuum pump 前级真空泵a vacuum pump for maintaining the backing pressure of another pump below critical valuebacklash 侧隙“excessive play between adjacent parts in a mechanism such as a set of gears, usually as a result of the parts being worn”backlash 回差relative movement of interlocked mechanical parts that occurs when motion is reversedbacklash 齿隙the amount by which the width of a tooth space exceeds the thickness of the engaging tooth on the pitch circlesbacklite 后窗the rear window of a vehiclebacksplash 后防溅板“a vertical waterproof surface, usually tiled, that protects the area above a sink or bath from splashes”backstop 后退定程挡块a catch on a mechanism often designed to prevent it from moving back too farbackstroke 回程a stroke or movement in the opposite direction to that of the original or forward onebackup buzzer 倒车报警器a device alarms when a car is backing upbackup light 倒车灯a light on the back of a motor vehicle that comes on when the vehicle is in reversebag sealer 封袋机a machine by which a plastic or paper bag can be sealed with an adhesive tape sealbagger 装袋器a machine for putting objects or substances into bagsbalance weight 平衡重a weight used to counterbalance a moving part in a machine balance wheel 平衡轮a wheel that regulates the rate of movement in a machine balanced vane pump 平衡式叶片泵a hydraulic pump that consists of a rotor mounted in the center of an elliptical cavitybalancing machine 平衡机“a measuring tool used for balancing rotating machine parts such as rotors for electric motors, fans, turbines, disc brakes, disc drives, propellers and pumps”ball bearing 滚珠轴承a type of rolling-element bearing which uses balls to maintain the separation between the moving parts of the bearingball joint 球窝接头short for ball-and-socket jointball screw 滚珠丝杠a mechanical device for translating rotational motion to linear motionball stud 球头销a stud used for joining the mechanical elements of a ball joint in the steering or suspension system of automobilesball support 球面支座a support with ball for moving loads having a hollow body to which the load is applied and in which a ball partially coming out is housedball-and-socket joint 球窝接头a mechanical device consisting of a spherical knob at the end of a shaft that fits securely into a socketballoon tire 低压轮胎“a wi de pneumatic tire for full inflation at relatively low pressure, used especially in certain early bicycles and motor”balloon tyre 低压轮胎“a wide pneumatic tire for full inflation at relatively low pressure, used especially in certain early bicycles and moto r”band brake 带式制动器a brake in which the frictional force is applied by increasing the tension in a flexible band to tighten it around the drumband saw 带锯an endless saw consisting of a toothed metal band that is driven around two wheelsbanjo axle housing 整体式桥壳a housing consisting of 2 identical stampings welded together in the horizontal planebarrel finishing machine 滚筒抛光机a machine to finish a work in the way that the work and polishing stone are put in the barrelbarrette file 扁三角锉“a file with teeth cut on the lower side, its back uncut with a ridge”BAS 制动辅助系统Brake Assist Systembase 底座“the lowest, bottom, or supporting part”base circle 基圆the circle on a gear such that each tooth-profile curve is an involute of itbase helix angle 基圆柱螺旋角“the an gle, at the base cylinder of an involute gear, that the tooth makes with the gear axis”base pitch 基圆齿距in an involute gear it is the pitch on the base circle or along the line of actionbastard file 粗锉刀不如“rasp”常用baulk ring 同步齿环a ring which helps ensure that gear changes are smooth by preventing the gears from being engaged until both components coming into contact are travelling at the same speedBCM 车体控制模块Body Control Modulebeach buggy 沙滩车“a motorized beach vehicle, usually without a top and withov ersized tires to prevent it from getting stuck in sand”bead 胎圈a projecting lip on the tire of a motor vehicle that forms a seal to the wheel rimbead heel 胎踵the outer bead edge that fits against the wheel flangebead toe 胎趾inner bead edge closest to the tire centerlinebeam axle 梁形横轴“a suspension system, also called a solid axle, in which one set of wheels is connected laterally by a single beam or shaft”beam of uniform strength 等强度梁a beam in which the dimensions are such that the maximum fiber stress is the same throughout the lengthbearing 轴承the part of a machine that supports a sliding or rotating partbearing bracket 轴承架a bracket usded to hold a bearingbearing bushing 承瓦a bushing for preotecting the bearingbearing chock 轴承座不如“bearing pedestal”常用bearing cover 轴承盖a cover for the bearingbearing housing 轴承箱a housing protecting the bearingbearing pedestal 轴承座“an independent support for a bearing, usually incorporating a bearing housing”bearing puller 轴承拔出器a tool that assists in the installation and removal of bearings and gearsbearing ring 轴承套圈outer or inner ring of a cross roller bearingbearing stress 承压应力the surface pressure acting on a joint face directly as a result of the force applied by a fastenerbedliner 车罩“a molded covering, usually made of rigid synthetic material, used to protect the floor of the open rear area of a pickup truck”bedplate 底板heavy metal base or platform to which the frame of an engine or machine is attachedbefore top dead center 上止点前any position of the piston between bottom dead center and top dead center on an upward strokebell crank 双臂曲柄a lever with two arms having a common fulcrum at their junctionbell type manometer 钟型压力计“a gage in which one pressure input is fed into an inverted cuplike container floating in liquid, and the other pressure input presses。