【MOOC】飞行器数字化制造技术专业英语-长沙航空职业技术学院 中国大学慕课MOOC答案

【MOOC】飞行器数字化制造技术专业英语-长沙航空职业技术学院中国大学慕课MOOC答案1.1.4了解机械师的职业工作1、【单选题】___________usemachinetools,suchaslathes,millingmachines,andmachiningcenters,toproduceprecisionmetalparts.本题答案：【machinists】2、【单选题】Beforethemachinistsmachineapart,theymustcarefully___________andpreparetheoperation.本题答案：【plan】3、【单选题】Theseworkersfirst___________blueprintsorwrittenspecificationsforajob.本题答案：【review】4、【单选题】Next,they___________wheretocutorboreintotheworkpiece,howfasttofeedthemetalintothemachine,andhowmuchmetaltoremove.本题答案：【calculate】5、【单选题】Theythen___________toolsandmaterialsforthejob,planthesequenceofcuttingandfinishingoperations,andmarkthemetalstocktoshowwherecutsshouldbemade.本题答案：【select】1.2.2词汇测试：岗位职责1、【单选题】grinder本题答案：【研磨机】2、【单选题】mill本题答案：【铣】3、【单选题】mandatory本题答案：【强制的，命令的】4、【单选题】maintain本题答案：【保持】5、【单选题】anticipate本题答案：【预见，预料】1.3.2翻译测试：机械师的工作安全要求1、【判断题】Craftsmanshipisadiversefieldinvolvingtheuseoftoolstoproducegoods.工艺是一个涉及使用工具生产商品的领域。本题答案：【错误】2、【判断题】Craftsmenareskilledandadepttradeworkersthatusehandtools,powertoolsandautomatedmachineryintheirdailywork.工匠是在日常工作中娴熟的、能熟练的使用手工工具、电动工具和自动化机械的行业工人。本题答案：【正确】3、【判断题】Theymightbehighlycreativewhendevelopingacustomidea,ortheymayneedtofollowaspecificsetofblueprintswhenusingamachine.当开发一个定制的想法时，他们可能是非常有创造力的，或者当使用机器时，他们可能需要遵循一组特定的图纸。本题答案：【正确】4、【判断题】Craftsmenworkinenvironments,bothindoorandoutdoor,wheresafetyisparamountandprotectionismandatory.工匠在室内和室外的环境中工作，其中安全是强制性的，保护是首要的。本题答案：【错误】5、【判断题】Employmentformachinistswasexpectedtoexpandby10%,andjobsfortoolanddiemakerswereexpectedtodecreaseby13%,accordingtotheBLS.据BLS预计，机械师的就业人数将增长到10%，预计工具和模具制造业的就业岗位将减少13%。本题答案：【错误】单元1测试：机械师岗位认知与基本技能介绍1、【单选题】Beforethemachinistsmachineapart,theymustcarefully___________andpreparetheoperation.本题答案：【plan】2、【单选题】Theseworkersfirst___________blueprintsorwrittenspecificationsforajob.本题答案：【review】3、【单选题】Next,they___________wheretocutorboreintotheworkpiece,howfasttofeedthemetalintothemachine,andhowmuchmetaltoremove.本题答案：【calculate】4、【单选题】Theythen___________toolsandmaterialsforthejob,planthesequenceofcuttingandfinishingoperations,andmarkthemetalstocktoshowwherecutsshouldbemade.本题答案：【select】5、【单选题】diverse本题答案：【多种多样的】6、【单选题】compensate本题答案：【补偿】7、【单选题】expedite本题答案：【加快发展】8、【单选题】vocational本题答案：【职业的】9、【单选题】calculate本题答案：【计算，估计】10、【单选题】cutout本题答案：【切断】11、【单选题】suspend本题答案：【悬置】12、【单选题】disassembly本题答案：【拆卸】13、【单选题】process本题答案：【工艺】14、【单选题】technician本题答案：【技术员】15、【单选题】___________usemachinetools,suchaslathes,millingmachines,andmachiningcenters,toproduceprecisionmetalparts.本题答案：【machinists】16、【多选题】Theypositionthemetalstockonthemachinetool___________，___________，___________,orothertypeofmachine本题答案：【drillpress#lathe#millingmachine】17、【多选题】Technicaldrawingisessentialforcommunicatingideasin___________and___________.本题答案：【industry#engineering】18、【多选题】Tomakethedrawingseasiertounderstand,peopleusefamiliar___________,___________,unitsof___________,notationsystems,___________,andpagelayout.本题答案：【symbols#perspectives#measurement#visualstyles】19、【多选题】Craftsmaninclude___________,___________,___________,___________,makingmodels,dyingcutsandpatterns,andcompletingotherdutiesasassignedbysupervisors.本题答案：【developingcustomideas#readingblueprints#settingmachines#usingautomatedequipment】20、【多选题】Craftsmenworkwithdifferenttypesof___________,___________,___________and___________.本题答案：【woods#metals#plastics#glass】21、【判断题】Craftsmanshipisadiversefieldinvolvingtheuseoftoolstoproducegoods.翻译为：工艺是一个涉及使用工具生产商品的领域。本题答案：【错误】22、【判断题】Craftsmenareskilledandadepttradeworkersthatusehandtools,powertoolsandautomatedmachineryintheirdailywork.翻译为：工匠是在日常工作中娴熟的、能熟练的使用手工工具、电动工具和自动化机械的行业工人。本题答案：【正确】23、【判断题】Acutawaydrawingisatechnicalillustration,inwhichsurfaceelementsofathree-dimensionalmodelareselectivelyremoved,tomakeinternalfeaturesvisible,butwithoutsacrificingtheoutercontextentirely.剖视图是一种技术图解，其中三维模型的表面元素被选择性地去除，但不完全牺牲外部描绘。本题答案：【错误】24、【判断题】Anexplodedviewdrawingisatechnicaldrawingofanobjectthatshowstherelationshipororderofassemblyofthevariousparts.翻译为：分解图是显示了一个物体各个部件的关系或顺序的技术图。本题答案：【错误】25、【判断题】Thedrawingmustshoweveryfeatureoftheinventionspecifiedintheclaims,andisrequiredbythepatentofficerulestobeinaparticularform.翻译为：图纸必须显示专利要求书中规定的发明的每一个特征，专利局的规则要求它具有特定的形式。本题答案：【正确】2.2.2词汇测试：机械制图1、【单选题】机械制图本题答案：【technicaldrawing】2、【多选题】绘图员本题答案：【drafter#draftsperson#draughtsperson】2.3.2翻译测试：技术图的功能1、【判断题】Acutawaydrawingisatechnicalillustration,inwhichsurfaceelementsofathree-dimensionalmodelareselectivelyremoved,tomakeinternalfeaturesvisible,butwithoutsacrificingtheoutercontextentirely.剖视图是一种技术图解，其中三维模型的表面元素被选择性地去除，但不完全牺牲外部描绘。本题答案：【错误】2、【判断题】Anexplodedviewdrawingisatechnicaldrawingofanobjectthatshowstherelationshipororderofassemblyofthevariousparts.分解图是显示了一个物体各个部件的关系或顺序的技术图。本题答案：【正确】4.1.4机床基本知识介绍1、【填空题】Thespindle___________（旋转）inbothdirections.本题答案：【rotates】2、【填空题】The___________(尾座)canbepositionedalongthewaysandthequillmoveswithinthetailstock.本题答案：【tailstock】3、【填空题】Thecrossslide___________（移动）perpendiculartotheways.本题答案：【moves】4、【填空题】Thecompoundslidemovesatanypresetangleoverthe___________（溜板箱）.本题答案：【saddle】5、【填空题】The___________(丝杠)andfeedrodalsorotateandreserveforcertainautomaticfunctions.本题答案：【leadscrew】4.2.4基本机加操作介绍1、【填空题】___________（不要）useaclothshield本题答案：【Don’t】2、【填空题】___________（缠绕）theshirtedgeintothetrousers.本题答案：【Wrap】3、【填空题】___________（系）backlonghair.本题答案：【Tie】4、【填空题】___________（移除）thewristwatch.本题答案：【Remove】5、【填空题】___________（使用）awoodencradletoavoiddroppingthechuckonthewaysoronyourfingerwhenchangingthechuck.本题答案：【Use】4.3.2词汇测试：铣床，车床1、【单选题】grinding本题答案：【磨的，碾的】2、【单选题】lathe本题答案：【车床】3、【单选题】treadle本题答案：【踏板】4、【单选题】shearing本题答案：【剪切】5、【单选题】flywheel本题答案：【调速轮，飞轮】4.3.4词汇测试：车削，钻削1、【单选题】machining本题答案：【加工】2、【单选题】manufacture本题答案：【制造】3、【单选题】refine本题答案：【精加工】4、【单选题】edge本题答案：【刀口】5、【单选题】erosion本题答案：【腐蚀】4.4.2翻译测试：铣床和车床的发展1、【判断题】Amachinetoolisamachineforshapingormachiningmetalorotherrigidmaterials,usuallybycutting,boring,grinding,shearing,orotherformsofdeformation.翻译为：机床是一种用于对金属进行成型或加工的机器，通常通过切削、镗孔、磨削、剪切或其他形式的变形实现。本题答案：【错误】2、【判断题】Forerunnersofmachinetoolsincludedbowdrillsandpotter'swheels,whichhadexistedinancientEgyptpriorto2500BC,andlathes,knowntohaveexistedinmultipleregionsofEuropesinceatleast1000to500BC.翻译为：机床的鼻祖包括弓钻和拉坯轮，他们出现在公元2500年的古埃及；而车床，已知至少在公元1000至500年出现在欧洲的多个地区。本题答案：【错误】3、【判断题】However,fromtheserootsalsoevolvedanindustryofmachinetoolbuildersaswedefinethemtoday,meaningpeoplewhospecializeinbuildingmachinetoolsforsaletoothers.翻译为：然而，从这些根源也演变出一种我们今天所定义的机床制造者，意指那些专门从事制造机床并出售给他人的人。本题答案：【正确】4、【判断题】Humanandanimalpower(viacranks,treadles,treadmills,ortreadwheels)wereusedinthepast,aswaswaterpower(viawaterwheel);however,followingthedevelopmentofhigh-pressuresteamenginesinthemid19thcentury,factoriesincreasinglyusedsteampower.翻译为：过去使用人力和动物力（通过曲柄、踏板、踏车），还有水动力（通过水轮）；然而，随着十九世纪中期高压蒸汽发动机的发展，工厂越来越多地使用蒸汽动力。本题答案：【正确】5、【判断题】Withthemillingtechnologyevolving,light,cost-effectiveandwellconstructedmillingmachineshadbeencreated.Millshadbeencontrolledmanuallyviahandwheelsorlevers,ormechanicallyautomatedviacamsbeforetheadventofNC(NumericallyControlled)mills.翻译为：随着铣削技术的不断发展，轻便、成本低以及构造良好的铣床已被造出。但在NC（数控）到来前，铣削一般是通过手轮或手柄手动控制，或通过凸轮由机械自动控制完成。本题答案：【正确】4.4.4翻译测试：车削和钻孔操作1、【判断题】Morerecentadvancedmachiningtechniquesincludeelectricaldischargemachining(EDM),electro-chemicalerosion,laser,orwaterjetcuttingtoshapemetalwork-pieces.翻译为：较新的先进加工技术包括电火花加工（EDM）、激光或水射流切割以成形金属工件。本题答案：【错误】2、【判断题】Therearemanykindsofmachiningoperations,eachofwhichiscapableofgeneratingacertainpartgeometryandsurfacetexture.翻译为：有许多种加工操作，每一种都能够产生某种几何形状和表面纹理。本题答案：【正确】3、【判断题】Thespeedmotioninturningisprovidedbytherotatingwork-part,andthefeedmotionisachievedbythecuttingtoolmovingslowlyinadirectionparalleltotheaxisofrotationofthework-piece.翻译为：车削中的速度运动是由旋转工作部件提供的，进给运动是由刀具沿与工件的旋转轴线平行的方向缓慢移动来实现的。本题答案：【正确】4、【判断题】Inmilling,arotatingtoolwithmultiplecuttingedgesismovedslowlyrelativetothematerialtogenerateaplaneorstraightsurface.翻译为：在铣削中，具有多个切削刃的旋转工具相对于材料缓慢地移动以产生直表面。本题答案：【错误】5、【判断题】Thecommonfeatureistheuseofacuttingtooltoformachipthatisremovedfromthework-part,calledswarf.翻译为：共同的特点是使用切削工具形成从工件脱离的碎片，称为切屑。本题答案：【正确】5.1.4PLC基本介绍1、【填空题】APLC(___________)(可编程逻辑控制器)isacentralprocessingunitforautomation.本题答案：【programmablelogiccontroller】2、【填空题】PLCaredesignedwithmultiple___________(I/O)（输入和输出）andworkbasedontheon-offsequentialconceptsimilartoarelayswitchingconceptwhichhasbeenlargelyusedinindustry.本题答案：【inputsandoutputs】3、【填空题】Likeothercomputerizeddevices,thereisa___________(CPU)（中央处理器）inaPLC.本题答案：【CentralProcessingUnit】4、【填空题】___________（存储器）isthecomponentthatstoresinformation,programs,anddatainaPLC.本题答案：【Memory】5、【填空题】ThecommontypesofmemoryusedinPLCsare___________(ROM)（只读存储器）andRandomAccessMemory(RAM).本题答案：【ReadOnlyMemory】5.2.4电气工程介绍1、【填空题】___________（电气工程）issometimesreferredtoaselectricalandelectronicengineering.本题答案：【Electricalengineering】2、【填空题】Electricalengineeringfirstbecameanidentifiableoccupationinthelatenineteenthcenturyaftercommercializationofthe___________（电报）andelectricalpowersupply.本题答案：【electrictelegraph】3、【填空题】Electricalengineeringisconsideredtodealwiththeproblemsassociatedwithlarge-scaleelectricalsystemssuchaspowertransmissionand___________（电动机控制）.本题答案：【motorcontrol】4、【填空题】Electronicengineeringdealswiththestudyofsmall-scaleelectronicsystemsincludingcomputersand___________（集成电路）.本题答案：【integratedcircuits】5、【填空题】Electronicengineersareconcernedwithusingelectricitytotransmit___________（信息）.本题答案：【information】5.3.2词汇测试：可编程逻辑控制器1、【单选题】drum本题答案：【鼓】2、【单选题】sequencing本题答案：【测序】3、【单选题】monitor本题答案：【监视器】4、【单选题】cabinet本题答案：【柜】5、【单选题】characteristic本题答案：【典型的】5.3.4词汇测试：电气工程和电子工程1、【单选题】electrical本题答案：【电的，电气的】2、【单选题】electric本题答案：【电动的】3、【单选题】electricity本题答案：【电】4、【单选题】electronics本题答案：【电子学】5、【单选题】electromagnetism本题答案：【电磁】5.4.2翻译测试：PLC的典型结构1、【判断题】Ascomputers,PLCscanperformtimingfunctions(fortheequivalentoftime-delayrelays),drumsequencing,andotheradvancedfunctionswithfargreateraccuracyandreliabilitythanwhatispossibletouseelectromechanicallogicdevices.翻译为：作为计算机，PLC可以执行定时功能（相当于延时继电器）、鼓排序和其他高级功能，与使用机电逻辑器件的精度和可靠性差不多。本题答案：【错误】2、【判断题】Fitintoacontrolcabinet,aPLCtakesuplittleroom,especiallyconsideringtheequivalentspacethatwouldbeneededbyelectromechanicalrelaystoperformthesamefunctions.翻译为：适合控制柜的PLC占用空间小，特别是考虑到由机电式继电器执行相同的功能所需的相当大的空间。本题答案：【正确】3、【判断题】BecauseaPLCisnothingmorethanaspecial-purposedigitalcomputer,ithastheabilitytocommunicatewithothercomputersrathereasily.翻译为：因为PLC只不过是一种专用的数字计算机，所以它与其他计算机进行交流不很容易。本题答案：【错误】4、【判断题】Aprogramstoredinthecomputerspecifieswhichoutputsshouldbeenergizedonthebasisofthepresentandpaststatesoftheinputsignals.翻译为：存储在计算机中的程序根据输入信号当前和过去的输入信号状态指定应该激活哪些信息。本题答案：【正确】5、【判断题】Therelativesimplicityofswitchingcontrolmakesitattractiveforuseinautomaticmachinesandprocesseswheretherequirementisforthemachineorprocesstofollowasetsequenceofoperations.翻译为：切换控制的相对简单性使其在自动机器和遵循一系列的操作顺序的过程中具有吸引力。本题答案：【错误】5.4.4翻译测试：电动机的功能1、【判断题】Becauseofitssimplicity,economy,anddurability,theinductionmotorismorewidelyusedforindustrialpurposesthananyothertypeofACmotor,especiallyifahigh-speeddriveisdesired.翻译为：由于其简单性、经济性和耐用性，在工业中，感应电机的应用比其他类型的交流电机大得多。本题答案：【正确】2、【判断题】However,iftherearemachinetoolsorothermachinesrequiringadjustablespeedorawiderangeofspeedcontrol,itwillprobablybedesirabletoinstallDCmotorsonsuchmachinesandsupplythemfromtheACsystembymotor-generatorsetsorelectronicrectifiers.翻译为：然而，如果有需要“可调速”或“广”范围的速度控制机床或其他机器，那么在这种机器上安装交流电动机可能是很有希望的，并用电动-发电机组或电子整流器将它们从交流系统中供电。本题答案：【错误】3、【判断题】Forvarying-speedservice,wound-rotormotorswithresistancecontrolareusedforfans,blowers,andotherapparatusforcontinuousdutyandareusedforcranes,hoists,andotherinstallationsforintermittentduty.翻译为：对于变速器，采用带电阻控制的鼠笼式电机用于风扇、鼓风机和其他连续作业的设备，或用于起重机、卷扬机和其他间歇作业的设备。本题答案：【错误】4、【判断题】ThesynchronousmotorisevenmoreexpensiveandrequiresasourceofDCexcitation,aswellasspecialsynchronizingcontroltoapplytheDCpoweratthecorrectinstant.翻译为：同步电动机更昂贵，需要直流励磁电源，以及专门的同步控制器，以便在适当的瞬间接入直流电源。本题答案：【正确】5、【判断题】Thevarioustypesofsingle-phaseACmotorsanduniversalmotorsareusedverylittleinindustrialapplicationssincepoly-phaseACorDCpowerisgenerallyavailable.翻译为：在工业中很少使用各种类型的单相交流电动机和交直流两用电动机，因为有多相交流电源或直流电源可用。本题答案：【正确】6.1.4数控机床简介1、【填空题】___________（计算机数控）isamanufacturingprocessinwhichpre-programmedcomputersoftwaredictatesthemovementoffactorytoolsandmachinery.本题答案：【CNCmachining】2、【填空题】WithCNCmachining,___________（三维的）cuttingtaskscanbeaccomplishedinasinglesetofprompts.本题答案：【three-dimensional】3、【填空题】Theearliestnumericalcontrolmachinesdatetothe___________（填时间）whenmotorswerefirstemployedtocontrolthemovementofpre-existingtools.本题答案：【1940s】4、【填空题】SomeofthemorecommonCNC-operatedprocessesincludeultrasonicwelding,hole-punchingand___________（激光切割）.本题答案：【lasercutting】5、【填空题】ThemostfrequentlyusedmachinesinCNCsystemsincludethefollowing:CNCMills，Lathes，PlasmaCutters，___________（电火花加工）,andWaterJetCutters.本题答案：【ElectricDischargeMachines】6.2.2词汇测试：计算机数控机床1、【单选题】programmer本题答案：【编程员】2、【单选题】coordinate本题答案：【协调】3、【单选题】chamfer本题答案：【倒角】4、【单选题】programmable本题答案：【可编程的】5、【单选题】automate本题答案：【自动化】6.3.2翻译测试：CNC基本结构1、【判断题】Whilepeopleinmostwalksoflifehaveneverheardofthisterm,CNChastouchedalmosteveryformofmanufacturingprocessinonewayoranother.翻译为：虽然大多数人从未听说过这个词，但CNC已经以同样的方式触及了几乎每一种制造过程。本题答案：【错误】2、【判断题】CNCmachinesareprogrammedbyaCNCprogrammer,whousesamachiningprinttodetermineX,Y,andZcoordinatesforeachcuttingtoolinsidetheCNCtomoveto.翻译为：数控机床由数控编程人员编程，编程人员使用加工打印确定数控系统内每个刀具的X、Y和Z坐标。本题答案：【正确】3、【判断题】InfactCNCoperatorstendtogetquiteboredduringlengthyproductionrunsbecausethereissolittletodo.翻译为：事实上，CNC操作员在长时间的生产过程中往往会感到厌烦，因为有很多事情可做。本题答案：【错误】4、【判断题】OneofthefirstspecificationsthatimpliesaCNCmachine’scomplexityishowmanyaxesithas翻译为：表明数控机床复杂性的第一个规格是它有多少个轴。本题答案：【正确】5、【判断题】Thespindlespeed(inrevolutionsperminute)canbeeasilyspecifiedandthespindlecanbeturnedoninaforwardorreversedirection.翻译为：主轴转速（每分钟转数）可以很容易地指定，主轴只能正向转动。本题答案：【错误】7.1.4焊接基本知识介绍1、【填空题】Therearefivebasictypesofjoints.Theyarebuttjoint,___________(角接接头),T-joint,lapjointandedgejoint本题答案：【cornerjoint】2、【填空题】Weldingmeanstouse(ornotuse)___________(填充金属)andheat(withorwithoutpressure)toformacontinuityofsolidmetalbetweentheworkpieces.本题答案：【fillermetal】3、【填空题】Therearefourbasicweldingpositions.Theyare___________(平焊位置)(lG),horizontalposition(2G),verticalposition(3G),andoverheadposition(4G）.本题答案：【flatposition】4、【填空题】Weldedjointisacompositeofallthepartsinvolvedinweldingandcomprises___________（焊接金属）,bondareaandheat-affectedzone(oftencalledHAZ).本题答案：【weldmetal】5、【填空题】Certainweldingprocesseshave___________（全位置）capabilities,whileothersmaybeusedinonlyoneortwopositions.本题答案：【all-position】7.2.4焊条电弧焊简介1、【填空题】___________（焊条电弧焊）(SMAW)isanarcweldingprocesswhereincoalescenceisproducedbyheatingwithanelectricarcbetweenacoveredorcoatedmetalrodcalledtheelectrodeandthework.本题答案：【Shieldedmetalarcwelding】2、【填空题】Theworkismadepartofanelectriccircuitknownasthe___________(焊接电路).本题答案：【weldingcircuit】3、【填空题】Thiscircuitincludesa___________,（电源）weldingcables,anelectrodeholder,agroundclampandtheconsumableweldingelectrode.本题答案：【sourceofpower】4、【填空题】Weldingbeginswhenan___________（电弧）isformedorstruckbetweenthemetallicelectrodeandthework.本题答案：【electricarc】5、【填空题】Iftheweldsareflatorhorizontal,theactualtransferisinducedbythe___________（重力）,molecularattractionandsurfacetension.本题答案：【forceofgravity】7.3.2词汇测试：焊接接头的组成1、【单选题】helment本题答案：【头盔】2、【单选题】decomposition本题答案：【分解】3、【单选题】mechanical本题答案：【机械的】4、【单选题】metallurgical本题答案：【冶金】5、【单选题】gravity本题答案：【重力】7.3.4词汇测试：焊条电弧焊的组成1、【单选题】workpiece本题答案：【工件】2、【单选题】joint本题答案：【接头】3、【单选题】junction本题答案：【交叉点】4、【单选题】composite本题答案：【复合材料】5、【单选题】bond本题答案：【熔合区】7.4.2翻译测试:焊接位置和焊缝的种类1、【判断题】Weldingmeanstousefillermetal(ornot)andheat(withorwithoutpressure)toformacontinuityofsolidmetalbetweentheworkpieces.翻译为：“焊接”指用填充金属，通过加热，在工件之间形成连续的固态金属。本题答案：【错误】2、【判断题】Jointisthejunctionofmembersortheedgesofmembersthataretobejoinedorhavebeenjoined.翻译为：焊接接头是“工件的连接点或者是将要被连接的或已被连接的工件的边缘区域。本题答案：【正确】3、【判断题】Heat-affectedzoneisthepartofthebasemetalwhich,becauseofitsproximitytothefusedmetal,hasbeeninfluencedbytheheatgeneratedintheweldingprocess.翻译为：热影响区是母材的一部分，由于临近熔化的金属，在焊接过程中受焊接热作用的影响。本题答案：【正确】4、【判断题】Certainweldingprocesseshaveall-positioncapabilities,whileothersmaybeusedinonlyoneortwopositions.翻译为：某种焊接方法具有全位置焊接的能力，而其他的焊接方法只适用于一个焊接位置。本题答案：【错误】5、【判断题】Therearemanydifferenttypesofwelds,andtheyarebestdescribedbytheirshapewhenshownincrosssection.翻译为：有多种不同的焊缝形式，当焊缝以横截面表示时，最好由其横截面的形状表述。本题答案：【正确】7.4.4翻译测试:焊条电弧焊的过程1、【判断题】Shieldedmetalarcwelding(SMAW)isanarcweldingprocesswhereincoalescenceisproducedbyheatingwithanelectricarcbetweenacoveredorcoatedmetalrodcalledtheelectrodeandthework.翻译为：焊条电弧焊是用被称为焊条的金属棒和工件之间所产生的电弧进行加热而形成结合的一种电弧焊工艺。本题答案：【错误】2、【判断题】Liketheotherelectricarcweldingprocesses,itemploystheheatoftheelectricarctobringtheworktobeweldedandaconsumableelectrodetoamoltenstate.翻译为：像其他的电弧焊一样，它利用电弧将被焊的工件和可融化的焊条加热到溶解状态。本题答案：【错误】3、【判断题】Tinyglobulesofmoltenmetalrapidlyformonthetipoftheelectrodeandtransferthroughthearcintothemoltenpoolorweldpuddleonthework'ssurface.翻译为：细小的金属熔滴快速地在焊条末端形成，并穿过电弧空间过渡到工件表面的熔池中。本题答案：【正确】4、【判断题】Molecularattractionandsurfacetensionaretheforcesthatinducemetaltransferfromtheelectrodetotheworkwheretheweldisbeingmadeintheverticaloroverheadposition.翻译为：焊缝处于立焊和仰焊位置时，分子吸引力和表面张力是促进熔滴从焊条向工件过渡的力。本题答案：【正确】5、【判断题】Whentheelectrodecableisfastenedtothenegativepoleofthegeneratorandtheworktothepositivepole,thepolarityispositive,ormorecommonlyreferredtoasstraightpolarity.翻译为：当电极电缆被连接在发电机的负极，且工件接正极时，极性是正的，或按更常规的说法叫做负接。本题答案：【错误】8.2.2词汇测试：工业机器人1、【单选题】robottechnology本题答案：【机器人技术】2、【单选题】manipulator本题答案：【机械手】3、【单选题】joints本题答案：【关节】4、【单选题】classify本题答案：【分类】5、【单选题】monitoring本题答案：【监控】8.3.2翻译测试：工业机器人的类型1、【判断题】Todaywithrobotsareality,analyzingtheselawsofroboticsprovidesaworthwhileconceptforroboticiststoconsiderwhendesigningrobotcontrolsystems.当今，随着机器人已成为现实，分析机器人的这些规律为机器人学家设计机器人控制系统时提供了一个有价值的概念。本题答案：【正确】2、【判断题】Arobotisare-programmable,multi-functionalmanipulatordesignedtomovematerials,parts,tools,specialdevicesthroughvariableprogrammedmotionsfortheperformanceofavarietyoftasks.翻译为：机器人是一种不可重复编程的多功能机械手，用于通过可变程序运动来移动材料、零件、工具、特殊装置以完成各种任务。本题答案：【错误】3、【判断题】Becausetheyprovidehighspeedandstrength,hydraulicsystemsareadoptedforlargeindustrialrobots.由于它们提供高速和强度，液压