Unit5ProductInspectionHotTipUnit5ProductInspectionWriting4Presentation1Passage12Passage23LanguageLab7Extension7Speaking5Translating6HotTipUnit5ProductInspectionPresentationInanyindustry,qualityinspectionisaprocessthat'susedtoinsurethataproductisfreefrombugs,operationalissuesandanynumberofotherproblemsyoucanthinkof.Inautomanufacturing,thatmeanscarsgothroughrigoroustestingtomakesurethey'rewell-engineered,safeandcomfortable.Whenacarcompanyreleasesanewproduct,theybuildprototypes,whicharethentestedtofindweaknesses,mechanicalproblemsandotherdetailsthatcouldbeimproved.Oncetheprototypeshavebeenvettedandpolished,thedesigngoesintoproduction,wherequalitycontrolcontinuesontheproductionline,too.Afterbeingbuilt,eachcaristestedforproblemslikefluidandairleaks,mechanicalproblemsandproperassembly.HotTipUnit5ProductInspectionAutomotiveDiagnosticandTestProcedureDuringthelastdecade,advancesintechnologyhavemadetoday’svehiclesquiteadvancedmachines.Inthepast,vehicleswerediagnosedusingafairlystraightforwardcause-and-effectprocedure.Eachsystemwastreatedasaseparate,independentsystemisolatedfromtheothers.Anengine-relatedproblem,forexample,wasusuallyconfinedtojusttheengine,whiletransmission-relatedproblemswereconfinedtothetransmission,andsoon.Inthecaseofavehiclewithblacksmokespewingfromthetailpipe,thefocuswasonthefueldeliverysystem(fuelpump,carburetor,etc.).Amisfirewasusuallyassociatedwiththeignitionsystemwithitsrespectivecomponents.Althoughstillsomewhatapplicabletotoday’ssystems,thereisamajordifferenceinhowthetechnicianmustapproachtheproblem.翻譯Passage1HotTipUnit5ProductInspection

Mostvehiclesarenowmanagedbyoneormorecomputersthatintegratetheoperationofseveralsystemstogether.Genericallyspeaking,thepowertraincontrolmodule(PCM)inmanyvehiclescontrolstheignition,fuel,andemissionsystem;engineandtransmission;brakesandtractioncontrol;andentertainmentandclimatecontrols.Whilethesesystemsstilloperateindependently,theyarealsointerrelatedtoothersystemsviathecomputer.Thetechnicianmustdetermineearlyinthediagnosticprocesswhatsystemcouldbeaffectinganotherseemingly-unrelatedsystem.Today’selectronicallycontrolledvehiclesappeartobeverycomplex,butitcanbelookedatinrelativelysimple,easytounderstandsegments.Itiscriticalthetechnicianunderstandthebasictheoryandoperatingprinciplesofthesystemsinthevehicle–mechanicalorelectrical.Indoingso,theinsightsforaccuratediagnosisareformed.Regardlessofthesymptom,concern,orsystem,aspecificguidelineforauniformdiagnosticproceduremustbeestablished.Althoughfindingtheprobleminareasonabletime-frameisimportant,theaccuracyofthediagnosisismoreimportant.Astheskilllevelandexperienceofthetechnicianimprovesovertime,sowillthespeedatwhichproblemsarediagnosed.Techniciansshouldpracticethe“fix-it-right-the-first-time”concept,thuseliminatingafrustratedcustomerreturningrepeatedlyforthesameproblem.翻譯Passage1Unit5ProductInspection翻譯Thediagnosticprocedurehasevolvedandisnowaresultofacriticalthoughtprocess,insteadofamechanicalprocess.Inotherwords,ratherthanassumingaspecificcomponentisfaulty,thenreplacingit,thediagnosticthoughtprocessproveswhyyouarereplacingitbasedonfactualtestresults.Usingasymptomtoestablishadiagnosisisimportant;however,actingonthesymptomalonewithoutperformingqualifyingtestscanleadyoudownacostlyandincorrectpath.Assumptionsmustbeprovedout.“Magicquick-fixes”donotalwayswork.Certainstepsneedtobefollowedwhenaddressinganyproblemwiththevehicle.Thefollowingsystematicapproachforaneffectivediagnosisgivesthetechnicianastrategyandprocesstofollowthatputsthingsinorder.Itcanapplytojustaboutanythingrelatedtothevehiclefromfluidleakstodrivabilityproblems.Passage1HotTipUnit5ProductInspection(1)QuestionsandAnswers.Thisisthetimethatthecustomerwillcommunicatethesymptomthathasledtothevehiclebeingbroughttoyou.Usually,aspecificeventoccurredthatappearedoutoftheordinarytothecustomer.Howthecustomertellsyouoftheproblemmayrequireyoutobeabitofaninterrogatorandadetective.Duringyourquestioning,youmayrevealanimportantpieceofinformationthatmaynothaveoccurredtothecustomertotellyou.Evenminorinformationcanbevaluable.Also,refrainfromlettingthecustomerdiagnosetheproblemforyou.Theyarenotalwayscorrect,ortheycouldbemakinganassumptionbasedonpartialexperienceorfacts.Useaworksheettoremindyouofthespecificquestionsyouneedtoask.翻譯Passage1HotTipUnit5ProductInspection(2)ClarifytheComplaint.Repeattothecustomerwhatyouunderstandofthecomplaint.Usespecificexplanationsinthedialogandavoidusingtechnicaljargonthatmayconfusethecustomer.Althoughmanytermsarecommonlyusedthroughoutourindustry,fewcustomersactuallyunderstandtheirtruemeaning.Forexample,acustomermayrequestanalignmentbecausetheyknowithassomethingtodowiththewheelsandsteering,butwhatifthecustomeraskedforanalignmentbecausethecarvibratedatspeedsover40mph?Obviously,analignmentwouldnothelpthissituation.Imaginethemultitudeofdescriptorsthatcouldbeusedtoexplainengineordrivability-relatedproblems,oranythingelseconcerningthevehicle.翻譯Passage1HotTipUnit5ProductInspection(3)VerifytheComplain.Thisstepisnothingmorethanconfirmingwhatfactis.Thisverifiesthattheproblemexistsandmatchesthedescription.Itmayrequireatestdrive,perhapswiththecustomer,toduplicatethesymptom.Itmaybenecessarytoattempttoduplicatetheconditionsasexperiencedbythecustomerwhentheproblemoccurred.Ofcourse,dependingonthesituation,thevehiclemayhavetobeleftforaperiodoftimeinordertorecreatetheconditionandproblem,perhapsevenovernight.翻譯Passage1HotTipUnit5ProductInspection(4)Climate,Speed,Time,Distance,andAction.Thesefivecategoriescanfurtheraidyourdiagnosisbyunderstandingexactlywhatwashappeningatthetimetheproblemoccurred.Ifnecessary,askspecificquestionsabouttheclimate.Wasitahotorcoldday?Wasitraining?Askaboutthevehiclespeed.Wasthevehicleatidle,city,orcruisespeed?Next,findoutwhenithappened.Didtheproblemoccuratthefirststartofthedayorafterahot-soakperiod?Howoftendidithappen?Howfardidthecustomerdrivethevehicle?Didtheproblembeginjustoutofthedrivewayorafteralongdistance?Whatactionwasthevehicleperformingduringtheproblem?Wasthevehiclestopped,accelerating,turning,goinguphill,pullingaload,etc.?Also,ifapplicable,findoutifanyaftermarketequipmentoraccessoriesareinstalledorifotherservicehasbeendonerecently.翻譯Passage1HotTipUnit5ProductInspection(5)UtilizetheResourcesthatAreAvailabletoYou.Wheneverpossible,youshoulduseallavailableinformationandotherresourcestoeffectivelydiagnosetheproblem,theleastofwhichisyourownexperience.Consulttheservicemanualoraserviceinformationsystemtoknowhowtoapplyspecificteststothevehicle.Insomecases,itwillbebeneficialtoresearchanytechnicalservicebulletins(TSBs)thatmayapplytothevehicle.Also,assimpleasitmaysound,donotoverlooktheowner’smanualthatcamewiththevehicle.Otherresourceswillincludepropertoolsandspecifictestequipmentneededtoperformtestsandrepairs.Asyouworkintoamorecomplextestprocedure,itisbesttofollowtherecommendedtestprocedureforthatparticularvehicle,whichonoccasionmayrequirespecialtytoolsofsometype.Donothesitatetoaskforassistance.翻譯Passage1HotTipUnit5ProductInspection(6)BeginwithanAreaTest.Theareatestgivesyouthebroadestandquickestoverviewandassessmentofthesystemsinquestion.Youmaychooseatestthatwasbasedonasymptomorasuspectedfault.Thisgivesyouthemostgeneralofstartingpoints.Thepurposeistoisolateonesystemfromanother.Forexample,inthecaseofano-startcomplaint,youneedtodetermineiftheproblemismechanical,electrical，ignition,orfuelrelated.Byperforminganareatest,youwilldeterminethesystemsthatareworkingandthosethatarenot.Therefore,throughaneliminationprocess,youcanbegintofocusonthespecificsystemthatismostlikelytocausethecomplaintorsymptom.Theobjectiveistoexcludeallothercomponentsthathavenothingtodowiththeproblemanddeterminetherootcause.翻譯Passage1HotTipUnit5ProductInspection(7)Next,PerformtheSystemTest.Nowthatyouknowwhatisandisnotworking,yourattentionwillfocusonthesystemthatisinitiallydeterminedtobeatfault.Thisisbecauseyoutestedtheothersystemswithnoproblemsfoundduringtheareatest.Thesystemyouwillbetestingisprobablymadeupofseveralcomponentsorsubsystems.Inthecaseofanignitionsystemproblem,youwillneedtoperformafewteststodeterminewhichpartoftheignitionsystemisnotfunctioning.Forexample,istheproblemintheprimaryorsecondaryignition?Asanotherexample,supposeourdiscussionwasrelatedtothemechanicalconditionoftheengine.Ifanareatestrevealedlowenginevacuum,thesystemtestmayincludeacompressiontesttodetermineifaninternalorexternalproblemexists.翻譯Passage1HotTipUnit5ProductInspection(8)PinpointorComponentTest.Afterdeterminingthesystemfault,thisdiagnosticstepwillgetyoutotheendresult,orveryclosetoit.Withtheproblemisolatedtoagivensystem,thepinpointtestdeterminesthecomponentthatismostlikelythereasonforthefailure.Itisnothingmorethancontinuingtheeliminationprocess.Dependingonthesituation,sometestsaredonewiththecomponentinstalledinthevehicle,whileothersneedtobetestedindependently,withthecomponentremovedfromthevehicle.Thesetestsmaybeassimpleasavisualinspectionofacomponentafterdisassembly,aprecisemeasurementofapart,oradynamictestwithatestinstrument.Thistestingprocesshelpstovalidatetheperformancepotentialoftheunitorpartinquestion.Asyoucansee,thesituationswillvary,buttheconceptandprocessisthesame,regardlessoftheproblem.翻譯Passage1HotTipUnit5ProductInspection(9)ApprovalandRepair.Afterdeterminingtheproblem,advisethecustomerofthecostandgetapprovalforthecompletionoftherepair.Explainwhatisneededandwhy.Ascomplexasthesystemsare,itispossibletouncoverotheritemsthatneedtobeaddressedbefore,during,oraftertherepairoftheoriginalproblem.Besureyoucommunicatethistothecustomeraheadoftime.翻譯Passage1HotTipUnit5ProductInspection(10)ConfirmandRetest.Makeitamandatorypracticetoconfirmyourrepairs.Provetherepairyoumadesolvedtheproblem.Therepairsyoumakeshouldrestorethevehicletodesignedperformancelevels.Ifothermaintenanceisrequiredtopreventarepeatofthefailure,itisbesttodoitbeforereturningthevehicletothecustomer.Theaboveprocedurehelpsestablishconsistencyinthewayyoubeginthediagnosisandhowyoucommunicatewiththecustomer.Evenifyouarenotindirectcontactwiththecustomer,youneedtobeinvolvedwiththeservicewritertoimpairclearinformationtothecustomer.翻譯Passage1HotTipUnit5ProductInspectiondiagnostic[,dai?ɡ'n?stik] adj.診斷的；特征的transmission[tr?nz'mi??n] n.傳動裝置，[機]變速器spew[spju:] vt.噴出；嘔吐tailpipe['teilpaip] n.排氣管carburetor[[,kɑ:bju'ret?] n.汽化器；化油器integrate['intiɡreit]vt.使…完整；使…成整體adj.整合的；完全的ignition[iɡ'ni??n] n.點火，點燃mechanical[mi'k?nik?l] adj.機械的；力學的；呆板的symptom['simpt?m] n.癥狀；征兆drivability[,draiv?'bil?ti] n.駕駛性能；assumption[?'s?mp??n] n.假定；設(shè)想alignment[?'lainm?nt] n.隊列，成直線；校準verify['verifai] vt.核實；查證validate['v?lideit] vt.證實，驗證；確認impair[im'pε?] vt.損害；削弱；減少NewwordsPassage1HotTipUnit5ProductInspectionconfinedto 局限于，只限于fueldeliverysystem 供油系統(tǒng)fuelpump 燃油泵ignitionsystem 點火系統(tǒng)powertraincontrolmodule 動力控制模塊emissionsystem 排氣系統(tǒng)tractioncontrol 傳動系統(tǒng)，牽引力控制系統(tǒng)electronicallycontrolledvehicles電子控制汽車regardlessof 不管，不顧outoftheordinary 異常的，不尋常的，例外的technicaljargon 專業(yè)術(shù)語aftermarketequipment 售后零件市場servicemanual 維修手冊technicalservicebulletins(TSB) 技術(shù)維修期刊owner’smanual 用戶手冊areatest 局部測試ignitionsystem 點火系統(tǒng)compressiontest 抗壓試驗；耐壓縮試驗pinpointtest 精確定位檢測PhrasesandExpressionsPassage1HotTipUnit5ProductInspection1.Mostvehiclesarenowmanagedbyoneormorecomputersthatintegratetheoperationofseveralsystemstogether.現(xiàn)在，大多數(shù)汽車都是被一個或多個微控制器所控制的，這些微控制器對車輛的幾個系統(tǒng)實行統(tǒng)一管理。2.Usingasymptomtoestablishadiagnosisisimportant;however,actingonthesymptomalonewithoutperformingqualifyingtestscanleadyoudownacostlyandincorrectpath.根據(jù)出現(xiàn)故障的癥狀進行診斷固然重要，但不進行測試驗證，而僅僅根據(jù)癥狀進行診斷，會導致高昂的維修成本和錯誤的解決方法。NotesPassage1HotTipUnit5ProductInspection3.Forexample,acustomermayrequestanalignmentbecausetheyknowithassomethingtodowiththewheelsandsteering,butwhatifthecustomeraskedforanalignmentbecausethecarvibratedatspeedsover40mph?例如，顧客要求做四輪定位，因為他們知道四輪定位與車輪和轉(zhuǎn)向有關(guān)，但是，倘使顧客因車速超過每小時40英里車輛出現(xiàn)振動而要求做四輪定位，原因是這樣嗎？NotesPassage1HotTipUnit5ProductInspection4.Dependingonthesituation,sometestsaredonewiththecomponentinstalledinthevehicle,whileothersneedtobetestedindependently,withthecomponentremovedfromthevehicle.在此種情況下，就要對車上安裝的某個部件進行一些隨車檢測，而其他部件則要從車上拆下來進行獨立檢測。NotesPassage1Unit5ProductInspection

TasksI.Answerthefollowingquestionsaccordingtothepassage.Howmanystepsarethereinthesystematicapproachforaneffectivediagnosis?Therearetensteps:(1)QuestionsandAnswers.(2)ClarifytheComplaint.(3)VerifytheComplain.(4)Climate,Speed,Time,Distance,andAction.(5)UtilizetheResourcesthatAreAvailabletoYou.(6)BeginwithanAreaTest.(7)PerformtheSystemTest.(8)PinpointorComponentTest.(9)ApprovalandRepair.(10)ConfirmandRetest.2.Whatistheobjectiveofanareatest?

Theobjectiveistoexcludeallothercomponentsthathavenothingtodowiththeproblemanddeterminetherootcause.3.Whatistheobjectiveofthesystemtest?

Theobjectiveistodeterminewhichpartorcomponentofsystemisnotfunctioning.Passage1Unit5ProductInspection

TasksII.TranslatethefollowingexpressionsintoChineseorEnglish.1.fueldeliverysystem2.fuelpump3.ignitionsystem4.aftermarketequipment5.維修手冊6.局部測試7.抗壓試驗8.精確定位檢測Passage1供油系統(tǒng)燃油泵

點火系統(tǒng)售后零件市場servicemanualareatestcompressiontestpinpointtestUnit5ProductInspection

TasksIII.TranslatethefollowingsentencesintoChinese.1.Regardlessofthesymptom,concern,orsystem,aspecificguidelineforauniformdiagnosticproceduremustbeestablished.

不論針對什么故障癥狀、影響因素或系統(tǒng)，必須確立一個具體的指導準則，以便形成統(tǒng)一的診斷流程。2.Wheneverpossible,youshoulduseallavailableinformationandotherresourcestoeffectivelydiagnosetheproblem,theleastofwhichisyourownexperience.

應(yīng)該盡可能運用所有可用的信息和資源，至少要利用自己的經(jīng)驗，幫助你對故障進行有效診斷。3.Theareatestgivesyouthebroadestandquickestoverviewandassessmentofthesystemsinquestion.

局部測試可對懷疑有故障的系統(tǒng)進行最廣泛、最快速的評估。4.Thesetestsmaybeassimpleasavisualinspectionofacomponentafterdisassembly,aprecisemeasurementofapart,oradynamictestwithatestinstrument.

這些檢測可能是對拆下部件進行簡單的外觀檢測，也可能是對一個部件進行精確測量，或是使用檢測儀器進行動態(tài)測試。

Passage1HotTipUnit5ProductInspectionAutomotiveTestingEquipmentThetune-uptechnicianmustbeveryfamiliarwithandcompetentintheuseofvariousformsoftestequipment.Withtheaidofthisequipment,thetechniciancanperformtwoveryimportanttasks.Forinstance,thetestinstrumentswhenproperlyusedquicklypinpointmalfunctionswithintheengineandtheignition,fuel,electrical,andemissioncontrolsystems.Inaddition,thissameequipmentisanexcellentqualitycontroltool.翻譯Passage2HotTipUnit5ProductInspectionLeakdetectorThisinstrumentisusedforlocatingleaksinanypressureandvacuumsystem,andisalsousedtoexaminethedischargetroublesinelectricapparatus.Theinstrumentconsistsofmainbody,ultrasonicprobe,ultrasonicmicrophoneandultrasonictransmitteretc.DieselSmokeMeterThisinstrumentisusedforthemeasurementofsmokeemittedfromvehiclewithdieselengine.Theinstrumentisthussuitableforinvestigatingbothsteady-stateandtransientconditions,butsuffersfromlackofsensitivity.Theopacimeterisessentiallyaninstrumentforuseonenginetestbedorchassisdynamometerandanexhaustextractionsystemisneeded;thisshouldnotcausedistortionoftheplume.Ifusedintheopenairitisclearthattheplumemustbeshieldedfromwind.翻譯Passage2HotTipUnit5ProductInspection

AutomotiveEmissionAnalyzerThisequipmentisusedforanalyzingtheconcentrationofCOandHCcontentinvehicleemissiongasfrom2-strokeand4-strokegasolineengineandmotorcycleinidlingmode.Thisisatypeofnon-dispersiveinfraredabsorptionanalyzer.Theinfraredanalyzerisadevicethatmeasurestheamountofhydrocarbons(HC)andcarbonmonoxide(CO)inavehicle’sexhaust.Bothofthesecompoundsareharmfulairpollutants.Hydrocarbonsinavehicle’sexhaustrepresentunburnedgasoline.Iftheenginedoesnotburnupallthefuelduringthecombustionprocess,rawgasolinegoesoutthetailpipeandregistersasHConthemeter.ThemeterontheanalyzermeasuresHCemissionsinpartspermillion(ppm).Ontheanalyzer’sCOmeter,therichnessor1eannessofamixtureisshownbythepositionoftheneedle.Thericherthemixture,forexample,thehighertheneedledeflects,indicatingagreaterpercentageofCOintheexhaustsample.TheanalyzermeasurestheamountofCOintheexhaust,usingapercentagefigure.MicrocomputerisedEngineAnalyzerItconsistsofthemainpart,sensorsandindicator.Themainpartisameasuringanddata-handlingsystemwithamicrocomputer．Therearesevensensors–ignition,powersupply,voltage,oilpressure,cylinderpressure,vibrationandfuelinjectionsensors.翻譯Passage2HotTipUnit5ProductInspectionChassisDynamometerThechassisdynamometerisanotherveryimportantdiagnostictool,foundinmanytune-upspecialtyshops.Thechassisdynamometermeasuresthemechanicalpowerofthevehicleatthedrive-wheelsandprovidestheoperatorwithareadoutinunitsofroadspeedandpower.Inaddition,thechassisdynamometeralongwithanengineanalyzerpermitstheoperatortoexamineenginesystemsindetailwiththevehicleoperatingunderaloadedcondition.Thetypicalchassisdynamometerconsistsoftworollers,aremotecontrolpendant,andreadoutinstruments.Thetworollerscradlethevehicle’sdrivewheels.Oneoftherollerscouplesdirectlytoapowerabsorptionunit.Thepowerabsorptionunitappliesavaryingloadonthisrolleruponcommandfromtheoperator.Thepowerabsorptionunitthenactsasaveryeffectivebrake,whichapplies,throughtheroller,resistancetodrive-wheelrotation.Thegreatertheloadappliedbytheabsorptionunittotheroller,themorehorsepowerisnecessarytoturnitatanygivenspeed.Thus，atconstantdrive-wheelspeed,thehorsepoweroutputcanbemadetovarybychangingtheload,appliedbytheabsorptionunit.Also,theoperatorcanvarythehorsepoweroutputwithaconstantloadappliedtothedrive-wheelsbychangingtheenginespeed.Theremotependantisahand-heldcontrolusedtoactivatethepowerabsorptionunit.Thecontrolitselfhastwobuttons:onandoff.Whenthetechnicianpushestheonbuttonin,thepowerabsorptionunitbeginstoloadtheroller.Theoffbutton,ontheotherhand,de-energizesthepowerabsorptionunit,thusreleasingtheloadfromtheroller.Thespeedandpowerinstrumentpanelcontainstwolarge,illuminatedmeters:speedandpower.翻譯Passage2HotTipUnit5ProductInspectionAutomobileFrontwheelAlignerThisisaspecialdeviceformeasuringthewheelcamber,thekingpincasterandthekingpininclinationofautomobile.Automobileside-slipTesterThisinstrumentisusedfortestingthedynamiclocationofthefrontwheelsofautomobile.Itconsistsofthetestingdevice,thequantitativeindicatingdeviceandthequalitativedisplayingdeviceofthesideslip.AutomobileSpeedometerTesterThisequipmentisusedforcheckingtheprecisionandtheperformanceofautomobilespeedometer.Itconsistsofthespeed-testdevice,speed-displaydeviceandspeed-alarmdevice.TorquemeterThisisatorquemeterwithmicrocomputer;it’susedformeasuringtorque,speedandpowerofengine,motorandgearbox,etc.翻譯Passage2HotTipUnit5ProductInspectionReactionTypeAutomobileBrakeTesterThisisaninstrumentforcheckingthebrakingperformanceofautomobile.Itconsistsoftheac-tuatingdevice,brakingforcesupposingdevice,brakingforcedetectingdeviceandbrakingforceindicatingdevice.AutomobileComprehensivetesterThisinstrumentisusedforthedeterminationofdynamicandeconomicpropertyinautomobiletest．Itconsistsofmainpartandsensors.Themainpartconsistsofasingleboardcomputerandaninterfacecircuitplate.Sensorsincludethefifthwheelsensor,fuelconsumptionsensor,pullingforcesensor,revolutionsensorandbrakepedalsensor.PerformanceTesterofInternal-Combustion-EngineThisisatesterformeasuringthepower,fuelconsumptionandrotationalspeedofengine.Itconsistsofamicrocomputerandaprintingsystem.Itisusedinenginetestrunincombinationwithvariousdynamometers.翻譯Passage2HotTipUnit5ProductInspectionWheelDynamicBalancerThisisaspecialequipmentforconductingbalancing.Theelectricalloggingsystemanalysesandhandlessignalswithasingleboardcomputer.Dynamicimbalance,unlikestaticimbalance,canonlybedetectedwhenthewheelisrotating.Dynamicbalancersoftheflinttyperequirethetiretobeinstaticbalancebeforeanydynamicbalancingisattempted.Dynamicimbalancecanthenbecheckedasthewheelisspun.Theweightsofthesizeindicatedareplacedonthewheelrimintheproperposition(180ofromeachotheronoppositewheelrims).Thewheelisrespuntomakesurethattheimbalancehasbeencorrected.Balancersofthesecondtype,thosethatcombinestaticanddynamicbalancefunctions,useasensingmechanismthatissensitivetotheentireweightcharacteristicofthetireandwheelassembly.Thisallowsimbalancetobecorrectedwithoneweightoneachsideofthewheel.翻譯Passage2HotTipUnit5ProductInspectiontechnician[tek'ni??n] n.技師，技術(shù)員；技巧純熟的人pinpoint['pinp?int] vt.查明；準確描述adj.精確的；詳盡的instrument['instrum?nt] n.儀器；器械；工具apparatus[,?p?'reit?s] n.裝置，設(shè)備transient['tr?nzi?nt] adj.短暫的；路過的sensitivity[,sensi'tiviti] n.敏感；敏感性；[醫(yī)]過敏opacimeter[,?up?'simit?] n.暗度計；煙度計；光密度計shield[?i:ld] n.盾；防護物；保護者vt.保衛(wèi)；包庇pollutant[p?'lu:tnt] n.污染物hydrocarbon[,haidr?u'kɑ:b?n] n.碳氫化合物tailpipe['teilpaip]n.排氣管needle['ni:dl]n.針；指針；刺激vi.縫紉；做針線deflect[di'flekt]vt.使偏斜；使轉(zhuǎn)向；使彎曲microcomputer[,maikr?uk?m'pju:t?]n.[計]微型計算機；[計]微電腦cradle['kreidl] n.搖籃；發(fā)源地；發(fā)祥地vt.撫育；支持readout['ri:daut] n.讀出；讀出器dynamic[dai'n?mik] adj.動力的；動力學的；動態(tài)的；有活力的quantitative['kw?ntit?tiv] adj.定量的；量的，數(shù)量的speedometer[spi'd?mit?] n.速度計；里程計torquemeter['t?:k,mi:t?] n.轉(zhuǎn)矩計，轉(zhuǎn)矩測定儀NewwordsPassage2HotTipUnit5ProductInspectiontune-up 發(fā)動機的調(diào)整leakdetector 泄露檢查器ultrasonicprobe 超聲波探測器ultrasonicmicrophone 超聲波擴音器ultrasonicmicrophone 超聲波信號發(fā)送器dieselsmokemeter 柴油機煙度計chassisdynamometer 底盤測功機infraredabsorptionanalyzer 吸收式紅外分析儀enginetestbed 發(fā)動機試驗臺engineanalyzer 發(fā)動機分析儀drive-wheel 驅(qū)動輪powerabsorptionunit 動力吸收單元frontwheelaligner 前輪定位儀wheelcamber 車輪外傾角kingpincaster 主銷后傾角kingpininclination 主銷內(nèi)傾角side-sliptester 側(cè)滑測試儀speedometertester 車速表測試儀brakingperformance 制動性能automobilebraketester 汽車制動測試儀fifthwheelsensor 第五輪傳感器fuelconsumptionsensor 燃油消耗傳感器

PhrasesandExpressionsPassage2HotTipUnit5ProductInspection

1.Thetestinstrumentswhenproperlyusedquicklypinpointmalfunctionswithintheengineandtheignition,fuel,electrical,andemissioncontrolsystems.正確使用檢測儀器有助于快速查找發(fā)動機、點火系、燃油系、電器和排放控制系統(tǒng)內(nèi)的故障。2.Thisinstrumentisusedforlocatingleaksinanypressureandvacuumsystem,andisalsousedtoexaminethedischargetroublesinelectricapparatus.泄漏檢查器用于查找所有壓力和真空系統(tǒng)中的泄露點，也用于檢查電氣設(shè)備中的漏電故障。3.Theopacimeterisessentiallyaninstrumentforuseonenginetestbedorchassisdynamometerandanexhaustextractionsystemisneeded;thisshouldnotcausedistortionoftheplume.吸光系數(shù)煙度計實際上是用于發(fā)動機試驗臺或底盤測功機上的儀器，它要與廢氣采集系統(tǒng)同時使用，這種煙度計測量煙度時不會錯誤。Passage2NotesHotTipUnit5ProductInspection4.ThisequipmentisusedforanalyzingtheconcentrationofCOandHCcontentinvehicleemissiongasfrom2-strokeand4-strokegasolineengineandmotorcycleinidlingmode.汽車排氣分析儀用于分析二沖程、四沖程汽油機車輛以及摩托車怠速狀態(tài)下的尾氣中的CO的濃度和HC化合物的含量。5.Thechassisdynamometermeasuresthemechanicalpowerofthevehicleatthedrive-wheelsandprovidestheoperatorwithareadoutinunitsofroadspeedandpower.底盤測功機能測量車輛驅(qū)動輪上的機械功率，并能給操作員提供出以道路行車速度和功率為單位的讀數(shù)。6.Thegreatertheloadappliedbytheabsorptionunittotheroller,themorehorsepow