机电一体化专业英语-教案

《机电一体化专业英语》（EnglishforMechatronics）授课教案TeachingPlanMajor(专业)：机电一体化XXXX专业（相关专业）Lecturer(任课教师)：__________________________MechatronicsSectionChangchunAutomobileIndustryInstitute2022.3《机电一体化专业英语》授课计划________学院___专业班20－20学年第学期授课时间：第周课程名称CourseName机电一体化专业英语EnglishforMechatronics授课教师Lecturer课程类型TypeofCourse授课对象Students授课学时Period28-30育人目标EducationalTarget什么是“工匠精神”？工匠精神是精益求精、精雕细琢的精神，是孜孜以求、追求卓越的执着，是一辈子专注一件事的境界。Whatis“craftsmanspirit”?Thecraftsmanspiritisthespiritofexcellence,thededicationofpursuingexcellence,andtherealmoffocusingononethingallone'slife.

教学目标TeachingObjectives知识目标KnowledgeObjective了解机电一体化一般知识、掌握关键词汇、短语、句子及术语Helpthestudentstolearncommonknowledgeofmechatronics,keywords,phrases,sentencesandterms.能力目标AbilityObjective培养学生的读、说、译的能力Developstudents'abilityofreading,speakingandtranslating.情感目标EmotionObjective培养学生的兴趣、自信、自主学习、合作精神；明白学习目标Cultivatestudents'interest,self-confidence,self-learningandcooperationspirit;knowthelearninggoals.教学重点KeyPoints1.Getmoreinformationaboutthemachinesstructureinthetopicofthisunit.2.Machinetool

practicecognition.教学难点DifficultPoints1.Understandthekeywords,phrasesandsentencesinthepassage.2.Translatethesimplematerialorspecificationofmachines.教学方法TeachingMethods•Explanation•Groupdiscussion•Questionsandanswers•Performance(Role-play)•Machinetoolspecification教学手段TeachingMeans•Multi-media•Videos•NetworkResource教学安排TeachingArrangement教学内容ContentsofCourse学时Period精读SectionITechnicalandPracticalReading2机床构造SectionIIGlanceattheStructureoftheMachineTool1试试身手（实践部分）SectionIIISimulatedWriting(Practice)2扩大您的视野（实践部分）SectionIV(Practice)1授课内容及要点TeachingContentsandMainPointsUnit1BasicMechanicalTechnology精读SectionITechnicalandPracticalReadingPeriod2PartI.Leadingin1.RevisionAskseveralstudentsiftheyknowthemachinetools,historyofmachinetoolsandimportantmachinemanufacturers.Arousestudentstoanswerteacher’squestionsaccordingtothePassageA/BforintroductiontomachineandmoldsinUnit1.2.Warmingupquestions1)Askstudentstoworkingroupsoffourtoreadnewwordsandphrases.2)Talkaboutkindsofcars.PartII.ComprehensionandPracticing1.CheckingandExplaining1)RaisessomequestionsaboutmachinetoolsaccordingtothepassageoftheTextbookMechanicalTechnologytoseehowmuchthey’veunderstood.2)RaisessomequestionsandasksstudentstoanswerindetailsaccordingtothepassageoftheTextbookMechanicalTechnologyatthesametimeexplainingsomelanguagepoints.3)Possibledifficultwords,phrasesandsentences.•KeyWords:lathen.A

lathe

isamachinewhichisusedforshapingwoodormetal.车床e.g.This

latheis

easyto

operate.

这台机床容易操作。machinistn.A

machinist

isapersonwhose

\o"job的释义"job

istooperateamachine,especiallyina

\o"factory的释义"factory.机械师e.g.His

father

is

a

machinist

in

an

aerospace

plant.

他的父亲是一家航空工厂的机械师。calipern.Calipers

arean

\o"instrument的释义"instrument

consistingoftwolong,

\o"thin的释义"thin

piecesofmetal

\o"joined的释义"joined

\o"together的释义"together

atoneend,andareusedto

\o"measure的释义"measure

the

\o"size的释义"size

ofthings.卡尺e.g.He

picked

upthe

calipersandmeasured

carefully.

他拿起卡钳仔细量了量。dimensionn.Aparticular

dimension

ofsomethingisaparticularaspectofit.尺寸e.g.This

wasthe

long

dimension.

这就是长度的尺寸。gagen.something

\o"deposited的释义"deposited

as

\o"security的释义"security

againstthefulfillmentofan

\o"obligation的释义"obligation;

\o"pledge的释义"pledge量规e.g.Check

thebacklashof

gears

with

dial

gageandcomparewithvaluesshownontheassembly

drawing.

使用千分表检查齿轮之间齿隙，与安装图纸上的数值进行比较。contrastingcolor对比色e.g.Frequently,

foradecorative

touch,

acontrastingcolor

thread

is

used.

这种缝型常用作装饰格调，使用的线是对比色。machiningproperty加工性能e.g.In

magnetic

abrasive

polishing,the

property

of

machining

device

hasgreateffectonwork-piece

quality.

在磁力研磨加工中，磁力研磨装置的性能对加工质量的影响很大。Sentences:1.Centerdrillsarestiff,stubbylittledrillsusedtostartholesintheendofwork-piece.本句是个简单句。句中usedtostart…是后置定语，修饰stubbylittledrills。全句可译为：中心钻是坚硬的、粗而短的小型钻头，用于在工件端面开孔。2.DigitalcalipersareusedjustlikedialcalipersformakinginsideandoutsidemeasurementsaccuratetoonethousandthofaninchbuthaveadirectLCDdigitalreadout.本句稍长，但它是一个并列句。句中“but”为连词，译为“而且”。全句可译为：数显卡尺就像带表卡尺一样，被用来实现千分之一英寸的内外精确测量，而且带有一个液晶显示器。3.Aftermountingthefaceplateonthespindle,itisstandardpracticeforfaceplatestotakealightone-timefacingcuttoensurethatthefaceoftheplateissquarewiththelathe.本句是一个复合句，After…引导出介词短语，主语为totake…，而toensurethat…又引导出一个状语从句。全句可译为：在把花盘安装在主轴上后,常规作法是对断面进行一次性的轻切削以确保花盘表面与车床主轴垂直。机床构造SectionIIGlanceatMachineToolStructuresPeriod1Thefollowingisthemachinetoolstructures.ExplanationsoftheMachineToolTermsNo.NameExplanation1Spindlespeedselector主轴速度转换开关2Headstockassembly主轴箱3Spindlewithchuck附有夹具主轴4Toolpost刀架5Compoundrest复式刀架6Crossslide横向拖板7Carriage滑鞍，滑座8Ways导轨9Deadcenter死顶尖10Tailstockquill尾架顶尖套筒11Tailstockassembly尾架12Hand-wheel手轮13Bed底座，床身14Leadscrew丝杠15Feedrod进刀杠，光杠16Clutch离合器17Longitudinal&transversefeedcontrol纵向和横向进给控制18Split-nutcontrol开合螺母控制19Apron溜板箱，进给箱20Chippan承屑盘21Feedselector进给选择开关Thefollowingistheconventionalmachinetool.Youarerequiredtochoosethesuitablewordsorphrasesgivenbelow.CommonLathe(普通车床)1.________(双刀塔车床)2.________(自动车床)3.________(

立式车床)4.________（专用车床）5.________（卧式车床）6.________(管子螺纹车床)Special

Purpose

LathePipe

Screw-cutting

LatheVertical

LatheDoubleTurretLatheHorizontal

LatheAutomaticLathe试试身手SectionIIISimulatedWriting(Practice)Period2HaveaTrySample1ExplanationsofTermsNo.NameExplanation1Anvil固定爪2Spindle伸缩爪(轴)3Lockring防松环4Vernier游标尺5Spindlenut轴螺母6Adjustingnut调节螺母7Scale刻度8Thimble外套管9Ratchetknob棘轮旋钮Choosethebestanswer.1.Stepmeasuringface

A.紧固螺丝2.Insidemeasuringface

B.校准贴纸3.LCDDisplayScreen

C.内径测量面4.inch/mmkey D.尺身5.Lockingscrew E.阶梯测量面6.Batterycover

F.开/关键7.Body

G.公英制转换键8.Calibrationsticker H.液晶显示屏9.Depthbar

I.外径测量面10.Zero-settingkey

J.滑尺11.On/Offkey

K.电池盖12.Slider

L.清零键13.Outsidemeasuringface M.测深杆扩大您的视野（实践部分）SectionIVBroadenYourHorizon—PracticalActivity(Practice)Period1PracticeThemicrometerscrewgaugeThemicrometerscrewgaugeisusedtomeasureevensmallerdimensionsthantheverniercaliper.Themicrometerscrewgaugealsousesanauxiliaryscale(measuringhundredthsofamillimeter)whichismarkedonarotarythimble.Basicallyitisascrewwithanaccuratelyconstantpitch.

Themicrometersinourlaboratoryhaveapitchof0.50mm.

Therotatingthimbleissubdividedinto50equaldivisions.

Thethimblepassesthroughaframethatcarriesamillimetrescalegraduatedto0.5mm.

Thejawscanbeadjustedbyrotatingthethimbleusingthesmallratchetknob.

Thethimblemustberotatedthroughtworevolutionstoopenthejawsby1mm.Hereisausefulapplettolearnhowtousethemicrometerscrewgauge(Figure1-19).Figure1-19ThemicrometerscrewgaugeInordertomeasureanobject,theobjectisplacedbetweenthejawsandthethimbleisrotatedusingtheratchetuntiltheobjectissecured.Notethattheratchetknobmustbeusedtosecuretheobjectfirmlybetweenthejaws,otherwisetheinstrumentcouldbedamagedorgiveaninconsistentreading.Notethatanadditionalhalfscaledivision(0.5mm)mustbeincludedifthemarkbelowthemainscaleisvisiblebetweenthethimbleandthemainscaledivisiononthesleeve.Theremainingtwosignificantfigures(hundredthsofamillimeter)aretakendirectlyfromthethimbleoppositethemainscale.InFigure1-20thelastgraduationvisibletotheleftofthethimbleis7mmandthethimblelinesupwiththemainscaleat38hundredthsofamillimeter(0.38mm);thereforethereadingis7.38mm.InFigure1-21thelastgraduationvisibletotheleftofthethimbleis7.5mm;thereforethereadingis7.5mmplusthethimblereadingof0.22mm,

giving7.72mm.

Figure1-20Thereadingis7.38mmFigure1-21Thereadingis7.27mmInFigure1-22themainscalereadingis3mmwhilethereadingonthedrumis0.46mm;therefore,thereadingis3.46mm.InFigure1-23the0.5mmdivisionisvisiblebelowthemainscale;thereforethereadingis3.5mm+0.06mm=3.56mm.Figure1-22Thereadingis3.46mmFigure1-23Thereadingis3.56mmTrythefollowingbgyourselfFigure1-24Figure1-25Figure1-26AssignmentA:Doexercise1,2,3,4and7.B:Askstudentstocollectsomeexternalmachinetools.《机电一体化专业英语》授课计划________学院___专业班20－20学年第学期授课时间：第周课程名称CourseName机电一体化专业英语EnglishforMechatronics授课教师Lecturer课程类型TypeofCourse考查授课对象Students授课学时Period28-30育人目标EducationalTarget心专一艺，事在一工，念系一职。Focusonaskill,loveajob,anddedicatedtoonejob.教学目标TeachingObjectives知识目标KnowledgeObjective了解机电一体化一般知识、掌握关键词汇、短语、句子及术语Helpthestudentstolearncommonknowledgeofmechatronicss,keywords,phrases,sentencesandterms.能力目标AbilityObjective培养学生的读、说、译的能力Developstudents'abilityofreading,speakingandtranslating.情感目标EmotionObjective培养学生的兴趣、自信、自主学习、合作精神；明白学习目标Cultivatestudents'interest,self-confidence,self-learningandcooperationspirit;Knowthelearninggoals.教学重点KeyPoints1.GetmoreinformationabouttheMechatronicsstructureinthetopicofthisunit.2.Machinetool

practicecognition.教学难点DifficultPoints1.Understandthekeywords,phrasesandsentencesinthepassage.2.Translatethesimplematerialorspecification.教学方法TeachingMethods•Explanation•Groupdiscussion•Questionsandanswers•Performance(Role-play)•Machinetoolspecification教学手段TeachingMeans•Multi-media•Videos•NetworkResource教学安排TeachingArrangement教学内容ContentsofCourse学时Period精读SectionITechnicalandPracticalReading2机床构造SectionIIGlanceattheStructureoftheMachineTool1试试身手（实践部分）SectionIIISimulatedWriting(Practice)2扩大您的视野（实践部分）SectionIV(Practice)1授课内容及要点TeachingContentsandMainPointsUnit2MetalMaterials精读SectionITechnicalandPracticalReadingPeriod2PartI.Leadingin1.RevisionAskseveralstudentsiftheyknowthemachinetoolstructures,metalmaterialsandimportantmachinetoolmanufacturers.Arousestudentstoanswerteacher’squestionsaccordingtothePassageA/BforintroductiontometamaterialsinUnit2.2.Warmingupquestions1)Askstudentstoworkingroupsoffourtoreadnewwordsandphrases.2)Talkaboutmetalmaterials.PartII.ComprehensionandPracticing1.CheckingandExplaining1)RaisessomequestionsaboutmechatronicsaccordingtothepassageoftheTextbookMetalMaterialtoseehowmuchthey’veunderstood.2)RaisessomequestionsandasksstudentstoanswerindetailsaccordingtothepassageoftheTextbookMetalMaterialatthesametimeexplainingsomelanguagepoints.3)Possibledifficultwords,phrasesandsentences.•KeyWords:corrosionn.Corrosion

isthe

\o"damage的释义"damage

thatiscausedwhensomethingis

\o"corroded的释义"corroded.腐蚀e.g.Zincisusedtoprotectothermetalsfromcorrosion.锌被用来保护其他金属不受腐蚀。crankshaftn.A

crankshaft

isthemainshaftofaninternalcombustionenine.曲轴e.g.Theenginehadabrokencrankshaft.发动机都有损坏的曲轴。hardnessn.

thestateorqualityofbeinghard硬度e.g.This

process

removesthe

water

hardness.

这一工艺去除水的硬度。heat-treateda.toheatand

\o"cool的释义"cool

(ametal)soastochangeitsductilityorotherpropertiesina

\o"desired的释义"desired

way热处理的e.g.Thebody

is

made

ofheat-treated

aluminumalloy.

机体采用热处理的铝合金制造而成。conductivityn.thepropertyofconductingortransmittingheat,electricity,etc.传导性e.g.The

effect

of

temperature

on

conductivity

of

metals

is

small.

温度对金属导电率的影响是很小的。leadscrew丝杠e.g.Thereis

acertain

of

difficulties

thatthe

process

ofmanufacturecannotbe

observed

easilyand

controlled

safely

when

the

big-lead

screw

in

theCNClathe.在数控车床上加工大螺距螺杆有一定的技术难度，加工时不便观察且安全可控性差。stainlesssteel不锈钢e.g.It's

possible

toweld

stainlesssteel

to

ordinary

steel.

将不锈钢和普通钢焊接在一起是可能的。Sentences:1.Metalsareusedinelectronicsforwiresandincookwareforpotsandpansbecausetheyconductelectricityandheatwell.这句中，beusedin“被用于…”。because引导原因状语从句。在这个从句中，conduct有两个宾语：electricity和heat。全句可译为：金属在电子行业中用来作导线，在炊具中用来作锅碗瓢盆，这是因为它们导电、导热性能都好。2.Twoormoremetalscanbealloyedtocreatematerialswithpropertiesthatdonotexistinapuremetal.主语为Twoormoremetals。with意为“具有”。that引导定语从句，先行词为properties。全句可译为：两种或更多种的金属可以形成合金材料，这些合金材料具有纯金属不存在的特性。3.Allferrousmetalsaremagneticandhavepoorcorrosionresistancewhilenon-ferrousmetalsaretypicallynon-magneticandhavemorecorrosionresistance.此句中，while用作连词，连接两个并列的句子，表示对比关系。其中，两个并列句的谓语动词又都是由and连接的并列谓语。该句可译为：所有的黑色金属都具有磁性和较差的耐蚀性，而有色金属通常不具有磁性，却有较强的耐蚀性。机床构造SectionIIGlanceatMachineToolStructuresPeriod1Thefollowingisthevicejawstructures.ExplanationsoftheViceJawTermsNo.NameExplanation1Fixedjaw固定钳口2Hardenedandground已硬化和磨光3Specialangle-locksystem特制的角锁紧系统4Vicebody虎钳体5Adjustingstopring调整止动环6Clampingforce夹紧力ThefollowingaresomeFunctionsonMachineTools.MillingMachine(铣床)1.________(升降台铣床)2.________(龙门铣床)3.________(单臂铣床

)4.________（仪表铣床）5.________（工具铣床）6.________(单柱铣床)Single-columnMillingMachinePlano-millingMachineToolMillingMachineKnee-and-ColumnMillingInstrumentmillingmachineSingle-armMillingMachine试试身手（实践部分）SectionIIISimulatedWriting(Practice)Period2HaveaTrySample1ExplanationsofTermsNameExplanationOuterframe外框Scalemarkplate刻度盘Spring弹簧Arm测量臂Gaugehead侧头Dialwindow刻度盘Indicator指针Clampscrew夹紧螺丝Choosethebestanswer.AB1.Dialwindow

A.限制器2.Longhand

B.短指针3.Toppoint

C.刻度盘4.Limiter D.刻度盘5.Clump E.长指针6.OuterframeF.底座7.Shorthand

G.顶针8.Base

H.螺丝紧固座9.

Scalemarkplate I.紧固件10.

Screwfasteningbase J.测头11.Gaugehead K.外框扩大您的视野（实践部分）SectionIVBroadenYourHorizon—PracticalActivity(Practice)Period1PracticeFacingOperationsFacingistheprocessofremovingmetalfromtheendofawork-piecetoproduceaflatsurface.PreparingfortheFacingCutClampthework-piecetightlyinthethree-jawchuck.Togettheworkproperlycentered,closethejawsuntiltheyjusttouchthesurfaceofthework,thenrotatethework-piecebyhandinthejawstoseatit;thentightenthejaws(Figure2-17).Figure2-17BeginningtheFacingCutFigure2-17Figure2-18Figure2-19Sincewestartedwiththetooljusttouchingtheendofthework-piece,youprobablyremovedverylittlemetalonthispass.Thisisagoodideauntilyougetusedtohowaggressivelyyoucanremovemetalwithoutstallingthelathe.TheRoughingCutUsethecompoundcranktoadvancethetooltowardsthechuckabout0.010".Ifthecompoundissetata90degreestothecrossslide(whichishowIusuallysetmine)theneachdivisionyouturnthecrankwilladvancethetool0.001(one-thousandthofaninch)towardthechuck.Ifthecompoundissetatsomeotherangle,say30degrees,tothecrossslide,thenitwilladvancethetoollessthan0.001foreachdivision.Theexactamountisdeterminedbythetrigonometricsineoftheangle.Here’sapictureofthefirstpassofafacingoperation(Figure2-20).Figure2-20CuttingontheReturnPassFigure2-20TheFinishingCutDependingonhowroughtheendofthework-piecewastobeginwithandhowlargethediameteris,youmayneedtomakethreeormorepassestogetanicesmoothfinishacrosstheface.Theseinitialpassesarecalledroughingpassesandremovearelativelylargeamountofmetal.Whenyougetthefaceprettysmoothyoucanmakeafinalfinishingcuttoremovejust0.001to0.003"ofmetalandgetanicesmoothsurface.Figure2-21showsremovingabout0.002"ofmetalataround1

000RPM.Figure2-22showsthefinishedfaceofthework-piece.Figure2-21Figure2-22Figure2-23showswhathappensifthetipofyourcuttingtoolisbelowthecenterlineofthelatheFilingtheEdgeFacingoperationsleavearathersharpedgeontheendofthework-piece.It’sagoodideatosmooththisedgedownwithafiletogiveitanicechamferandtoavoidcuttingyourselfonit.Withthelatherunningatfairlylowspeed,bringasmoothcutfileuptotheendofthework-pieceata45degreeangleandapplyalittlepressuretothefile.Figure2-24:Right—lefthandholdingtangendoffile.Figure2-25:Wrong—lefthandreachingoverspinningchuck!Figure2-23Figure2-24Figure2-26showsthefinishedsurfaceandbevelededge.Thisiswhatagoodfacingcutshouldlooklike:smoothevensurfacewithnoraisedbumpinthecenter.Layanaccuratestraightedgeacrossthesurfaceofthefaceandyoushouldnotbeabletoseeanylightundertheedge.Ifyoudetectaslightconvexshape,thecarriagemaybemovingbackawayfromtheheadstockduringthecut.Figure2-25Figure2-26AssignmentA:Doexercise1,2,3,4and7.B:Askstudentstocollectsomeexternalmachinetools.《机电一体化专业英语》授课计划________学院___专业班20－20学年第学期授课时间：第周课程名称CourseName机电一体化专业英语EnglishforMechatronics授课教师Lecturer课程类型TypeofCourse考查授课对象Students授课学时Period28-30育人目标EducationalTarget在传承中创新，在坚持中升华，化腐朽为神奇，于细微处彰显卓越。Innovateininheritance,sublimateinpersistence,turndecayintomagic,andhighlightexcellenceindetail.教学目标TeachingObjectives知识目标KnowledgeObjective了解机电一体化一般知识、掌握关键词汇、短语、句子及术语Helpthestudentstolearncommonknowledgeofmechatronicss,keywords,phrases,sentencesandterms.能力目标AbilityObjective培养学生的读、说、译的能力Developstudents'abilityofreading,speakingandtranslating.情感目标EmotionObjective培养学生的兴趣、自信、自主学习、合作精神；明白学习目标Cultivatestudents'interest,self-confidence,self-learningandcooperationspirit;Knowthelearninggoals.教学重点KeyPoints1.Getmoreinformationaboutthemachinetoolstructureinthetopicofthisunit.2.Machinetool

practicecognition.教学难点DifficultPoints1.Understandthekeywords,phrasesandsentencesinthepassage.2.Translatethesimplematerialorspecification.教学方法TeachingMethods•Explanation•Groupdiscussion•Questionsandanswers•Performance(Role-play)•Machinetoolspecification教学手段TeachingMeans•Multi-media•Videos•NetworkResource教学安排TeachingArrangement教学内容ContentsofCourse学时Period精读SectionITechnicalandPracticalReading2机床构造SectionIIGlanceattheMachineToolStructures1试试身手（实践部分）SectionIIISimulatedWriting(Practice)2听说练习（实践部分）SectionIVBroadenYourHorizon—PracticalActivity(Practice)1授课内容及要点TeachingContentsandMainPointsUnit3MachiningOperations精读SectionITechnicalandPracticalReadingPeriod2PartI.Leadingin1.RevisionAskseveralstudentsiftheyknowthebasicmachinetoolanditsfunction.Arousestudentstoanswerteacher’squestionsaccordingtothePassageA/BforintroductiontobasicmachinetoolsinUnit3.2.Warmingupquestions1)Askstudentstoworkingroupsoffourtoreadnewwordsandphrases.2)Talkaboutthebasicboringmachines.PartII.ComprehensionandPracticing1.CheckingandExplaining1)RaisessomequestionsaboutmachinetoolsaccordingtothepassageoftheTextbookMachiningOperationstoseehowmuchthey’veunderstood.2)RaisessomequestionsandasksstudentstoanswerindetailsaccordingtothepassageoftheTextbookMachiningOperationsatthesametimeexplainingsomelanguagepoints.3)Possibledifficultwords,phrasesandsentences.•KeyWords:mechanicallyad.A

mechanical

devicehaspartsthatmovewhenitis

\o"working的释义"working,oftenusingpowerfroman

\o"engine的释义"engine

orfrom

\o"electricity的释义"electricity.机械地e.g.Mostmechanicaldevicesrequireoilasalubricant.大多数机械装置都需要油作为润滑剂。manufacturen.To

manufacture

somethingmeanstomakeitina

\o"factory的释义"factory,usuallyinlarge

\o"quantities的释义"quantities.制造e.g.Manufactures

aregoodsorproductswhichhavebeenmadeinafactory.制造厂是指工厂生产的货物或产品。refinev.

\o"purify的释义"purify,

\o"process的释义"process,

精加工e.g.Oilisrefinedtoremovenaturallyoccurringimpurities.油经过提炼以去除自然产生的杂质。specificationn.A

specification

isa

\o"requirement的释义"requirement

whichis

\o"clearly的释义"clearly

stated,forexample

aboutthe

\o"necessary的释义"necessary

\o"features的释义"features

inthedesignofsomething.技术规范e.g.LegislationwillrequireU.K.petrolcompaniestomeetanE.U.specificationforpetrol.立法将要求英国的汽油公司满足欧盟的汽油规格。enlargev.

\o"grow的释义"grow,

\o"increase的释义"increase,

\o"extend的释义"extend,

\o"stretch的释义"stretch扩大e.g.Whenyou

enlarge

somethingorwhenit

enlarges,itbecomes

\o"bigger的释义"bigger.当你放大某物或当它放大时，它会变得更大。drillpress钻床e.g.The

machineused

for

drilling

iscalled

adrill

press.

钻头上的控制钻孔机的圆形部分。finefinishing精加工e.g.Themakingofnewmouldhastwosteps,first,twoworkersdoroughturning,andthenotherworkersdo

finefinishing.

新模具的加工分成两块，先由两位模具工进行粗车，再由模具工进行精加工。Sentences:1.Conventionalmachining,oneofthemostimportantmaterialremovalmethods,isacollectionofmaterial-workingprocessesinwhichpower-drivenmachinetools,suchaslathes,millingmachines,anddrillpressesareusedwithasharpcuttingtooltomechanicallycutthematerialtoachievethedesiredgeometry.在这个长句中，主语是Conventionalmachining，由is引导出合成谓语；oneofthemost…methods是插入语；inwhich引导定语从句，其先行词为processes。在定语从句中，areused是定语从句中的谓语动词。此句可译为：常规加工是集各种材料加工工艺于一体的最重要的切除材料的方法之一，在此过程中电动机床，如车床、铣床和钻床，利用锋利的刀具来进行机械加工以获得期望的几何形状。2.Drillingoperationsareoperationsinwhichholesareproducedorrefinedbybringingarotatingcutterwithcuttingedgesatthelowerextremityintocontactwiththework-piece.在此句中，inwhich引导定语从句，修饰先行词operations。by表示方法、方式。bing…intocontactwith…意为“使……与……接触”。本句可译为：钻削是通过刀具旋转对工件进行钻孔或孔的精加工的一种操作，在钻头下面切入工件的顶端带有两个切削刃。3.Theshapeofthetoolanditspenetrationintotheworksurface,combinedwiththesemotions,producethedesiredshapeoftheresultingworksurface.在此句中，主语是由and连接的并列主语，谓语动词为binedwith…是分词作状语。本句意思为：刀具的形状、刀具对工件表面的切入加上它们之间的运动生成了最终的工件表面。机床构造SectionIIGlanceatMachineToolStructuresPeriod1Thefollowingisthemachinetoolstructure.No.NameExplanation1Forward/Reverse正转/反转2Start/Stop启动/停止3LongitudinalHand-wheel纵向手轮4VerticalFeedHand-crank垂直进给手柄5Cross-FeedHand-wheel横向进给手轮6PowerFeed电动进给7Table工作台8Spindle主轴9DigitalReadout数码屏10SpindleSpeed主轴转速11HandBrake手动制动器ThefollowingaresomeFunctionsonMechatronicsTerms.BoringMachine(镗床)1.________(卧式铣镗床)2.________(立式金刚镗床)3.________(双坐标镗床)4.________（深孔镗床）5.________（数控龙门镗铣床）DoubleBoring

MachineVertical

DiamondFineBoring

MachineBoring

MachineCNCPlano-Boring

and

Milling

MachineHorizontal

Milling

and

Boring

MachineDeepHole试试身手（实践部分）SectionIIISimulatedWriting(Practice)Period2HaveaTrySample1TypicalpartsprogramNo.NameExplanation1twistbits麻花钻2tang扁尾3tapershank锥柄4pointangle顶尖角5tangdrive扁尾驱动6flutes韧带7helicangle螺旋角8lip-reliefangle刃倾角9edgeangle横刀倾角10drilldiameter钻头直径11bodydiameterclearance刀体直径间隙12clearancediameter间隙直径13straightshank直柄14neck颈部15shankdiameter刀柄直径16shanklength刀柄长度17flutelength韧带长度18body刀体19overalllength总长20margin刃边21lip刀刃22web钻心23chiseledge横刃Choosethebestanswer.A

B1.Wrenchsize A.中间插件2.Screw

B.外部插件3.Carbideguidepad

C.扳手大小4.Intermediateinsert D.钻头体5.CenterinsertE.螺丝6.Peripheralinsert F.中心插件7.

Drillheadbody G.硬质合金导向块扩大您的视野（实践部分）SectionIVBroadenYourHorizon—PracticalActivity(Practice)Period1PracticeTurningOperationsTurningistheremovalofmetalfromtheouterdiameterofarotatingcylindricalwork-piece.Turningisusedtoreducethediameterofthework-piece,usuallytoaspecifieddimension,andtoproduceasmoothfinishonthemetal.ChuckingtheWork-pieceWewillbeworkingwithapieceof3/4"diameter6061aluminumabout2incheslong.Wecansafelyturnitinthethreejawchuckwithoutsupportingthefreeendofthework.Insertthework-pieceinthethree-jawchuckandtightendownthejawsuntiltheyjuststarttogripthework-piece.Rotatethework-piecetoensurethatitisseatedevenlyandtodislodgeanychips.Youwantthework-piecetobeasparallelaspossiblewiththecenterlineofthelathe.Imagineanexaggeratedexamplewherethework-pieceisskewedatanangleinthechuckandyoucaneasilyvisualizewhythisisimportant.Tightenthechuckusingeachofthethreechuckkeypositionstoensureatightandevengrip(Figure3-13).AdjustingtheToolBitChooseatoolbitwithaslightlyroundedtip.Thistypeoftoolshouldproduceanicesmoothfinish.Adjusttheangleofthetool-holdersothetoolisapproximatelyperpendiculartothesideofthework-piece.Becausethefrontedgeofthetoolisgroundatanangle,theleftsideofthetipshouldengagethework,butnottheentirefrontedgeofthetool.Theangleofthecompoundisnotcritical.Iusuallykeepmineat90degreessothatthecompounddialadvancesthework(Figure3-14).

Figure3-13Figure3-14CuttingSpeedsYoumustconsidertherotationalspeedofthework-pieceandthemovementofthetoolrelativetothework-piece.Workingwiththe7×10forhobbypurposes,youwillquicklydevelopafeelforhowfastyoushouldgo.Untilyougetafeelfortheproperspeeds,startwithrelativelylowspeedsandworkuptofasterspeed.Mostcuttingoperationsonthe7×10willbedoneatspeedsofafewhundredRPM—withthespeedcontrolsetbelo