PAGEPAGE23SceneOneMechanicalMaterialsBeforeyoustepintothisscene,pleaselearnbyheartthefollowingwordsandexpressionswithyourclassmatesbylookingupthedictionaryorsurfingtheinternet.LookatthefollowingwordswemayuseinthissceneandmatchtheEnglishandChinesemeaning.Thefollowingexpressionswemayuse,beforewefinishoffthetaskpleasemakeouttheirChinesemeaningwiththehelpofyourteammatesordictionaryorsurfingtheinternet.characteristica.特有的n.特性metallica.金屬的nonmetallica.非金屬的organica.有機的infinitea.無窮的n.無盡commerciala.商業(yè)上的，商業(yè)的oxiden.氧化物sulfiden.硫化物carbonaten.碳酸鹽，黑金剛石refinev.精煉，提純optimumn.（復數optima）最適合條件lathen.車床flexibilityn.機動性，靈活性supervisionn.監(jiān)督，管理camn.凸輪suiteto適于nonferrousmetal有色金屬general-purpose普通用途special-purpose特殊differfrom…與…不同either…or…既…又…notonly…butalso…不僅…而且…Thematerialandtheprocessbeunderstoodinthedesignandmanufactureofaproduct.Materialsdifferwidelyinphysicalproperties,machinabilitycharacteristics,methodsofforming,andpossibleservicelifeMechanicalmaterialsfallintotwobasictypes:metallicornon-metallic.Non-metallicmaterialsarefurtherclassifiedasorganicorinorganicsubstances.Weshouldpaymoreattentiontochoosetheappropriatematerialbecausethereisaninfinitenumberofnon-metallicmaterialsandpureaswellasalloyedmetals.Fewcommercialmaterialssuchasoxides,sulfides,orcarbonates,existaselementsinnature.Sotheymustundergoaseparatingorrefiningoperationbeforetheycanbefurtherprocessed.Inmetalworking,ironisthemostimportantnaturalelement.Whencombinedwithotherelementsintovariousalloysitbecomestheleadingengineeringmetal.Thenonferrousmetals,includingcopper,tin,zinc,nickel,magnesium,aluminium,lead,andothersallplayanimportantpartinoureconomy.Activity:MakeasurveyaboutmechanicalengineeringmaterialsinyourworkplaceTaskOne:Listthefactorswehavetoconsiderthedifferencesamongthemechanicalengineermaterialsafterdiscussionwithyourgroupmembers.TaskTwo:pleasefillintheformsaboutthetypesofengineeringmaterials.ferrousferrousOtherelementsVariousalloysnonferrousmetallicMechanicalmaterialsOtherelementsVariousalloysnonferrousmetallicMechanicalmaterialsnon-metallicorganicnon-metallicorganicinorganic inorganicAftertalkingaboutthematerialwithyourgroupmembersandthendoyourbestanswerthefollowingquestionsaccordingtotheabovematerial.Whatfactsshouldthedesignerconsiderinselectinganeconomicalmaterialandaprocessthatisbestsuitedtotheproduct?Fewcommercialmaterialssuchasoxides,sulfides,orcarbonates,existaselementsinnature.Sotheymustundergoaseparatingorrefiningoperationbeforetheycanbefurtherprocessed.Inmetalworking,ironisthemostimportantnaturalelement.Whencombinedwithotherelementsintovariousalloysitbecomestheleadingengineeringmetal.Thenonferrousmetals,includingcopper,tin,zinc,nickel,magnesium,aluminium,lead,andothersallplayanimportantpartinoureconomy.Whichnaturalcompoundsofmetalsdonotexistaselementsinnature?Fewcommercialmaterialssuchasoxides,sulfides,orcarbonates,existaselementsinnatureCanyoulistsomenonferrousmetalsaccordingtotheabovematerial?Thenonferrousmetals,includingcopper,tin,zinc,nickel,magnesium,aluminium,lead,andothersallplayanimportantpartinoureconomy.Manufacturingrequirestoolsandmachinesthatcanproduceeconomicallyandaccurately.Economydependsontheproperselectionofthemachineorprocessthatwillgiveasatisfactoryfinishedproduct,itsoptimumoperation,andmaximumperformanceoflabourandsupportfacilities.Insmall-lotorjobshopmanufacturing,general-purposemachinessuchasthelathe,drillpress,andmillingmachinemayprovetobethebestbecausetheyareadaptable,havelowerinitialcost,requirelessmaintenance,andpossesstheflexibilitytomeetchangingconditions.Asimpleboltmaybeproducedoneitheralatheoranautomaticscrewmachine.Thelatheoperatormustknownotonlyhowtomaketheboltbutmustalsobesufficientlyskilledtooperatethemachine.Ontheautomaticmachinethesequenceofoperationsandmovementsoftoolsarecontrolledbycamsandstops,andeachitemproducedisidenticalwiththepreviousone.Oftenitisuneconomicaltomakeamachinecompletelyautomatic.Becausethecostmaybecomeprohibitive.Mostpartscanbeproducedbyseveralmethods,butusuallythereisonewaythatismosteconomical.Factorsthatmustbeconsideredarevolumeofproduction,qualityofthefinishedproduct,andtheadvantagesandlimitationsoftheequipmentcapableofdoingthework.Mostpartscanbeproducedbyseveralmethods,butusuallythereisonewaythatismosteconomical.Readingtheaboveinformationwiththehelpofyourclassmates,trytounderstandthemeaningofitandthenfillintheblanksinthefollowingshortparagraph.Manufacturingrequirestoolsandmachinesthatcanproduceeconomicallyandaccurately.Economydependsontheproperselectionofthemachineorprocessthatwillgiveasatisfactoryfinishedproduct,itsoptimumoperation,andmaximumperformanceoflabourandsupportfacilities.Insmall-lotorjobshopmanufacturing,general-purposemachinessuchasthelathe,drillpress,andmillingmachinemayprovetobethebestbecausetheyareadaptable,havelowerinitialcost,requirelessmaintenance,andpossesstheflexibilitytomeetchangingconditions.Discussionwithyourcolleaguesandtrytosharetheideasofyourpartnersandthenmakesurewhichofthefollowingexpressionisrightorwrong.RightforTandwrongforF（√）general-purposemachinesmayprovetobethebestinsmall-lotorjobshopmanufacturing.（√）lathe,drillpress,andmillingmachinemaymeetchangingconditionssincetheyareadaptable,havelowerinitialcost,requirelessmaintenance,andpossesstheflexibilityto.（√）Tooperatethemachine,thelatheoperatormustknowbothhowtomaketheboltandbesufficientlyskilled.Surveyyourfactoryattachedtoyourcollegeandmakeitclearthatwhyitisuneconomicaltomakeamachinecompletelyautomatic,talkingaboutitinyourgroup.Readthelastparagraphoftheabovematerialanddoyourbesttoanswerthefollowingquestionwiththehelpofyourclassmates.RefertothereadingmaterialsSceneTwoElectricalmachiningBeforeyoustepintothisscene,pleaselearnbyheartthefollowingwordsandexpressionswithyourclassmatesbylookingupthedictionaryorsurfingtheinternet.LookatthefollowingwordswemayuseinthissceneandtrytomakeouttheirChinesemeaninginagiventime,whoeverfinishesoffitfirstwillbethewinner.Unique唯一的，獨特的Odd奇數的，單數的Dissimilar不同的，相異的Electrochemical電氣化學的Comeabout發(fā)生，出現Dueto由于Space-age空間時代Time-consuming費時的Incontrast相比之下，相反，可是Uniqueto……所獨有的Electrochemicalmachining電化學加工Electrochemicalgrinding電化學磨削Mostelectricalmachiningprocesseshavecomeaboutduetothedevelopmentofapace-agemetalalloysthataretoughandhardtomachine.Grindingcutting,andshapingwithcuttingtoolsareexacting,time-consuming,andexpensiveprocessesonsuchalloys.Insomecases,machiningwithconventionalequipmentisalmostimpossible.Amaterialliketungstencarbide,forexample,isverydifficulttomachineevenwithdiamondcuttingtools.Readtheaboveparagraphoftheabovematerialanddoyourbesttoanswerthefollowingquestionwiththehelpofyourclassmates.RefertomaterialReadthroughtheaboveinformationagainwithyourworkmatesandtrytofillintheblanksinthefollowingshortpassage.Mostelectricalmachiningprocesseshavecomeaboutduetothedevelopmentofapace-agemetalalloysthataretoughandhardtomachine.Grindingcutting,andshapingwithcuttingtoolsareexacting,time-consuming,andexpensiveprocessesonsuchalloys.Insomecases,machiningwithconventionalequipmentisalmostimpossible.ReadtheaboveunderlinedmaterialsagainwithyourworkmatesandthentrytotranslatethemintoChinese,andfinallydiscusswithyourworkmates.RefertomaterialOnstandardmachinetools,electricalenergyisconvertedbyanelectricmotorintomotionthatistransmittedthroughaseriesofshafts,pulleys,belts,andgearstoacuttingtool.Incontrast,theelectricalmachiningprocessesmakedirectuseofelectricalenergy.Thisresultsincertainabilitiesthatareuniquetotheseprocesses,machiningwithouttoolrotationorwithouttouchingtheworkpiece,machiningoddshapes,andmachiningdissimilarmetalswithoutloadingthetool.ThreemajorelectricalmachiningprocessesareEDM(electricaldischargemachining),ECM(electrochemicalmachining),andECG(electrochemicalgrinding)Readtheabovematerialsfirstwithyourcolleaguesandthentryyourbesttogiveoutthedefinitionofelectricalmachining..RefertomaterialGroupactivities.WorkwithyourgroupmembersandreadtheaboveinformationagainandtryyourbesttotranslatethefollowingtermsintoChinese.Thendictatethemamongyourgroupmembers.workpieceelectricalmachiningprocessesgearselectricalenergyelectricmotorshaftscuttingtoolbeltspulleysoddshapesloadingthetoolSurveyyourworkplaceandobservecarefully,makeouttheprocessofelectricalmachiningandaskthemasterforhelpifanyproblems,writedownyourexperiencesinyourworkplace.Refertomaterial Workwithyourworkmatesreadingtheabovematerialcarefullyandthentrytounderstandthekindsofprocessesofelectricalmachining.Pleasecooperatewithyourpartnersandwritedownyouranswers.Readtheaboveparagraphoftheabovematerialanddoyourbesttoanswerthefollowingquestionwiththehelpofyourclassmates.RefertomaterialReadtheaboveinformationagainwithyourroommateandalsoobserveyourworkplacecarefullyandthenwritedowntheadvantagesofelectricalmachining?RefertomaterialSceneOneLatheBeforeyoustepintothisscene,pleaselearnbyheartthefollowingwordsandexpressionswithyourclassmatesbylookingupthedictionaryorsurfingtheinternet.LookatthefollowingwordswemayuseinthissceneandmatchtheEnglishandChinesemeaninginagiventime,whoeverfinishesoffitfirstwillbethewinner.Drillingn.鉆削Millingn.銃削Fastenv.固定，加固，連接Feedn.進給，送給Cuttern.刀具Clampn.夾子Carriagevt.溜板Bedn床Headstockn.主軸箱Tailstockn.尾架Slidev.滑動Metalworkn.金屬制品Spindlen.主軸Wobblevi.搖晃Alignmentn.隊列Micrometern.千分尺Thefollowingexpressionswemayuse,beforewefinishoffthetaskpleasemakeouttheirEnglishmeaningwiththehelpofyourteammatesordictionaryorsurfingtheinternet.機床銃床刀座主軸頂尖尾架頂尖Alatheisamachinetoolforcuttingmetalfromthesurfaceofaroundworkfastenedbetweenthetwolathecentersandturningarounditsaxis.Inturningtheworkacuttermovesinthedirectionparalleltotheaxisofrotationoftheworkoratanangletothisaxis,cuttingoffthemetalfromthesurfaceofthework.Thismovementofthecutteriscalledthefeed.Thecutterisclampedinthesurfaceofthetoolpostwhichismountedonthecarriage.Thecarriageisthemechanismfeedingthecutterintheneededdirection.Thelathehandmayfeedthecutterbyhandormaymakeitbefedautomaticallybymeansofspecialgears.Thelargestpartofthelatheiscalledthebedonwhichtheheadstockandthetailstockarefastenedatoppositeends.Ontheupperpartofthebedtherearespecialwaysuponwhichthecarriageandthetailstockslide.Thetwolathecentersaremountedintwospindles:oneisheldintheheadstockspindle,whiletheother(theheadcenter)inthetailstockspindle.Readtheaboveparagraphoftheabovematerialanddoyourbesttoanswerthefollowingquestionwiththehelpofyourclassmates.RefertoreadingmaterialsGroupactivities.Workwithyourgroupmembersandreadtheaboveinformationagainandtryyourbesttosolvethefollowingproblems.Pleaselisttheconstructionofalathewiththehelpofyourworkmates.RefertoreadingmaterialsReadtheaboveunderlinedmaterialsagainwithyourworkmatesandthentrytotranslatethemintoChinese,andfinallydiscusswithyourworkmates.Firsttranslatethefollowingsentencesaboutthefunctionoftoolswithyourcooperators.RefertoreadingmaterialsReadtheaboveunderlinedmaterialsagainwithyourworkmatesandthentrytotranslatethemintoChinese,andfinallydiscusswithyourworkmates.WorkwithyourclassmatestryingtotranslatethefollowingphrasesintoChinese.latheroundworkaxisturningtheworkparalleltotheaxisangletothisaxiscutterfeedclampedtoolpostcarriagelathehandRefertoreadingmaterialsThelathechuckisusedforchuckingthework,whichisforclampingitsothatitwillrotatewithoutwobblingwhileturningthechuck,usually,mountedontheheadstockspindlemayhavedifferentsizesandconstruction.Iftheworkisperfectlyround,itmaybechuckedintheso-calledthree-jawuniversalchuck,allthejawsofwhicharemovedtothecenterbyturningthescrew.Butiftheworkisnotperfectlyround,thefour-jawindependentchuckshouldbeused.Inturningdifferentmaterialsandworksofdifferentdiameters,lathesmustberunatdifferentspeeds.thegearboxcontainedintheheadstockmakesitpossibletorunthelatheatvariousspeeds.Beforeturningaworkthelathe,thelathecenteristobealigned:thatmeansthattheaxesofbothcentersmustbeononeline.Thealignmentofthelathecentersmaybetestedbytakingacutandthenmeasuringbothendsofthecutwithamicrometer.Notallworksshouldbefastenedbetweenthetwocentersofthelathe.Ashortworkmaybeturnedwithoutusingthedeadcenter,bysimplychuckingitproperlyatthespindleoftheheadstock.Discussionwithyourcolleaguesandtrytosharetheideasofyourpartnersandthenmakesurewhichofthefollowingexpressionisrightorwrong.RightforTandwrongforFQuizQuestions.TickthecorrectresponseintherelevantboxTaskOne:RefertoreadingmaterialsReadthroughtheaboveinformationagainwithyourworkmatesandtrytofillintheblanksinthefollowingshortpassage.RefertoreadingmaterialsReadtheaboveunderlinedmaterialsagainwithyourworkmatesandthentrytotranslatethemintoChinese,andfinallydiscusswithyourworkmates.WorkwithyourclassmatestryingtotranslatethefollowingphrasesintoChinese.lathechuckclampingwobblingturningthechuckheadstockspindleconstructiongearboxshortworkthree-jawuniversalchuckfour-jawchucklathecenterdeadcenterReadtheabovematerialagainandthendoyourbestmakeouttheChinesemeaningofthefollowingsentenceswiththehelpofyourteammates.RefertoreadingmaterialsSurveyyourworkplaceagainwithyourclassmatesandobservecarefullythenwritedownthemeaningofthefollowingfigures.P50RefertoreadingmaterialsSceneTwoMillingBeforeyoustepintothisscene,pleaselearnbyheartthefollowingwordsandexpressionswithyourclassmatesbylookingupthedictionaryorsurfingtheinternet.LookatthefollowingwordswemayuseinthissceneandmatchtheEnglishandChinesemeaninginagiventime,whoeverfinishesoffitfirstwillbethewinner.Removev旋轉Mountv固定Arborn心軸Spacern墊片Bushingn村套Yoken刀桿支架Slitv切開Clockwiseadj順時針Regularadj規(guī)則的

particularadj特別的Horizontaladj水平的Variousadj不同點Variationn變化Kneen升降臺Universaladj萬能的Elevatevt升高Indexn分度頭Stockn臺Thefollowingexpressionswemayuse,beforewefinishoffthetaskpleasemakeouttheirEnglishmeaningwiththehelpofyourteammatesordictionaryorsurfingtheinternet.裝有分類為分成根據從…….出去虎鉗裝置橫向的RefertoreadingmaterialsThemillingmachineisamachinethatremovesmetalfromtheworkwitharevolvingmillingcutterastheworkisfedagainstit,themillingcutterismountedonanarborwhereitisheldinplacebyspacersorbushings,thearborisfixedinthespindlewithoneend,whiletheotherendofthearborrotatesinthebearingmountedonthearboryoke.Themillingcuttersaregenerallymadefromhighspeedsteelandavailableindifferentsizesandshapes.therearesuchkindsofmillingcuttersascylindricalcutters,endmillingcutters(forfacemilling),formmillingcutters,angularcutters,sideandfacecutters,slittingsaw,etc.thesecuttersmaydifferinthedirectionoftheiroperationi.e.theymaycutrevolvingeitherclockwiseorcounter-clockwise.Regularorirregularshapedworkmaybeproducedonamillingmachine.Designsvaryingaccordingtotheparticularclassofworkwanted.Accordingtothepositionofthespindle,themillingmachinesmaybedividedintotwogroupsofverticalspindlemillingmachinesandhorizontalspindlemillingmachines.Millingmachinesmaybeintovariousclasses.Accordingtovariationingeneraldesignasthe“columnandkneetype”,themanufacturingtypes,andtheplanertypeofmillingmachine.Accordingtothetabledesign,themillingmachinesmaybeclassifiedasuniversalandplainmillingmachines.Readtheaboveparagraphoftheabovematerialanddoyourbesttoanswerthefollowingquestionwiththehelpofyourclassmates.RefertoreadingmaterialsGroupactivities.Workwithyourgroupmembersandreadtheaboveinformationagainandtryyourbesttosolvethefollowingproblems.Writedownthetypesofmillingmachinesaccordingtodifferentcriterion.RefertoreadingmaterialsReadtheabovematerialsagainwithyourworkmatesandthendiscusswithyourcolleaguesfillinthefollowingtableaboutthetypesofmillingcutters.Tickitoutifitis.cylindricalcutters（）endmillingcutters（）sideandfacecutters（）formmillingcutters（）angularcutters（）slittingsaw（）Surveyyourworkplaceagainwithyourclassmatesandobservecarefullythenwritedownthemeaningofthefollowingfigures.Dictatethenewterminologiesforeachotheramongyourgroupmembers.P62kindsofmillingcuttersAPlainmillingcutterBfacemillingcutterCplainmetalslittingsawDsidemillingcutterEanglemillingcutterFT-slotcutterGendmillcutterReadtheabovematerialsagainwithyourworkmatesandthentrytotranslatethemintoChinese,andfinallydiscusswithyourworkmates.Firsttranslatethefollowingsentencesaboutthefunctionoftoolswithyourcooperators.RefertoreadingmaterialsReadthroughtheaboveinformationagainwithyourworkmatesandtrytofillintheblanksinthefollowingshortpassage.RefertoreadingmaterialsReadthroughtheaboveinformationagainwithyourworkmatesandtrytofillintheblanksaboutthetypesofmillingmachines,putthemintodifferentclassification.①verticalspindlemillingmachines②universalmillingmachines③plainmillingmachines④theplanertypeofmillingmachine⑤horizontalspindlemillingmachines⑥themanufacturingtypes⑦columnandkneetypeGeneraldesignThemostimpartmentpartsofthemillingmachinearestartinglevers,spindle,column,knee,elevatingscrew,table,indexhead,speedlevers,feedlevers,tablemovementlevers,footstock,andarboryoke.Thespindleofthemillingmachineisdrivenbyanelectricmotorthroughatrainofgearsmountedinthecolumn.Thetableoftheplainmillingmachinemaytravelonlyatrightanglestothespindle,whiletheuniversalmillingmachineisprovidedwithatablethatmaybeswiveledonthetransverseslideformillinggearteeth,threadsetc.Variousattachmentsareusedforincreasingtherangeofworkthatcanbeperformedonamillingmachine.Thedividinghead(alsocalledanindexhead)isadeviceusedtodividetheperipheryofapieceworkintoanynumberofequalparts,andtoholdtheworkintherequiredpositionwhilethecutsarebeingmade.Variouskindsofvisesmaybeusedforholdingtheworkinamillingmachine,themostcommonbeingtheplainvise,andtheswivelvise.ReadtheaboveunderlinedmaterialsagainwithyourworkmatesandthentrytotranslatethemintoChinese,andfinallydiscusswithyourworkmates.WorkwithyourclassmatestryingtotranslatethefollowingphrasesintoChinese.startingleversspindlecolumnkneeelevatingscrewtableindexheadspeedleversfeedleverstablemovementleversfootstockarboryoke.ReadtheabovematerialagainandthendoyourbestmakeouttheChinesemeaningofthefollowingsentenceswiththehelpofyourteammates.RefertoreadingmaterialsDiscussionwithyourcolleaguesandtrytosharetheideasofyourpartnersandthenmakesurewhichofthefollowingexpressionisrightorwrong.RightforTandwrongforFQuizQuestions.TickthecorrectresponseintherelevantboxTaskOne:RefertoreadingmaterialsReadthroughtheaboveinformationagainwithyourworkmatesandthentickoutthefollowingitemswhichbelongtothepartsofamillingmachine.Readthroughtheaboveinformationagainwithyourworkmatesandtrytofillintheblanksinthefollowingshortpassage.RefertoreadingmaterialsSurveyyourworkplaceagainwithyourclassmatesandobservecarefullythenwritedownthemeaningofthefollowingfigures.P63universalmillingmachineRefertoreadingmaterialsSceneSevenRadialdrillingmachinesBeforeyoustepintothisscene,pleaselearnbyheartthefollowingwordsandexpressionswithyourclassmatesbylookingupthedictionaryorsurfingtheinternet.LookatthefollowingwordswemayuseinthissceneandmatchtheEnglishandChinesemeaninginagiventime,whoeverfinishesoffitfirstwillbethewinner.Radialadj半徑的Radiallyadv沿徑向Handlen把手Armn臂Circlen圓Controln控制Selectvt選擇Selectorn選擇器Levern杠桿Engagen接合Dealvt量Thefollowingexpressionswemayuse,beforewefinishoffthetaskpleasemakeouttheirEnglishmeaningwiththehelpofyourteammatesordictionaryorsurfingtheinternet.搖臂鉆床搖臂選速手柄大量的Theradialdrillingmachineisdesignedforhandlinglargework-piecesthatcannotbeeasilymoved.Thedrillingmachineheadismountedonaheavyradialarmwhichmaybefromthreetotwelveormorefeetlong.Thisarmcanberaisedorloweredwithpowerandcanbeturnedinacompletecirclearoundthecolumn.Thedrillingheadmovesbackandforthalongthisarm.Onmostradialdrillingmachines,movementofthearm,drillhead,andspindleiscontrolledbypower.Readtheaboveparagraphoftheabovematerialanddoyourbesttoanswerthefollowingquestionwiththehelpofyourclassmates.RefertoreadingmaterialsGroupactivities.Workwithyourgroupmembersandreadtheaboveinformationagainandtryyourbesttosolvethefollowingproblems.Pleasewritedownthefunctionofthedrillingmachineheadthearm.RefertoreadingmaterialsReadtheaboveunderlinedmaterialsagainwithyourworkmatesandthentrytotranslatethemintoChinese,andfinallydiscusswithyourworkmates.Firsttranslatethefollowingsentencesaboutthefunctionoftoolswithyourcooperators.RefertoreadingmaterialsReadtheaboveunderlinedmaterialsagainwithyourworkmatesandthentrytotranslatethemintoChinese,andfinallydiscusswithyourworkmates.WorkwithyourclassmatestryingtotranslatethefollowingphrasesintoChinese.TheradialdrillingmachineThedrillingmachineheadaheavyradialarmraisedorloweredwithpowermovesbackandforthmovementofthearm,drillhead,andspindleSurveyyourworkplaceandobservecarefully,andthenaskthemasterforhelpifanyproblems,writedownyourexperiencesinyourworkplace.RefertoreadingmaterialsSpindlefeedsandspeedsarecontrolledbyselectorleverswhichengagethepropergearsinthedrillhead.Depthoffeedisalsocontrolleddirectlyinthedrillheadbyasuitablemechanism.Inadditiontodrills,othertoolssuchasreamersandboringheadscanalsobeused,thesetoolsaddagreatdealofversatilitytothismachine.WorkwithyourclassmatestryingtotranslatethefollowingphrasesintoEnglish.進給量和轉速選速手柄主軸箱齒輪進給深度適當的機構鉆頭刀具絞刀鏜頭Discussionwithyourcolleaguesandtrytosharetheideasofyourpartnersandthenmakesurewhichofthefollowingexpressionisrightorwrong.RightforTandwrongforFQuizQuestions.TickthecorrectresponseintherelevantboxTaskOne:Readthroughtheaboveinformationagainwithyourworkmatesandtrytofillintheblanksinthefollowingshortpassage.RefertoreadingmaterialsSurveyyourworkplaceandobservecarefully,makeoutt