浅论毕业设计外文翻译

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1、浅论毕业设计外文翻译浅论毕业设计外文翻译_数控机床改造导读：orthehumanitytolaythefoundation.After6years,in1952,putertechnologyappliedtotheenginebed,thefirstnumericalcontrolenginebedthistimeon,thetraditionalenginebedhashadthearcherytargetchange.Sincenearlyhalfcentury,thenumericalcontrolsystem河北建筑工程

2、学院毕业设计外文资料翻译院别：机械工程学院专业：机械设计制造及其自动化班级：学号：外文出处：Softent,PolytechnicalUniversityofCatalonia,Spain附件：1、外文原文；2、外文资料翻译译文。TheNumericalControlEngineBedTransformsHarveyB.MackeyFirstnumericalcontrolsystemdevelopmentsummarybriefhistoryandtendencyIn1946thefirstelectronicaccountin

3、gmachineanitycreatedhasbeenpossibletostrengthenandpartiallytoreplacethementallaborthetool.Itanitytheseationsocietyforthehumanitytolaythefoundation.After6years,in1952,putertechnologyappliedtotheenginebed,thefirstnumericalcontrolenginebedthistimeon,thetraditionalengineb

4、edhashadthearcherytargetchange.Sincenearlyhalfcentury,thenumericalcontrolsystemhasexperiencedtent.1.1Numericalcontrol(NC)stage(1952--1970)Theearlyputeroperatingspeedisloecontrolrequest.Thepeoplecannotbutusenumerallogiccircuit“tobuild”tobeeanenginebedspecialpurposepute

5、rtotakethenumericalcontrolsystem,iscalledthehardericalcontrol(HARD-ICROPROCESSOR),alsomightbecalledthecentralprocessingelement(tobecalledCPU).Themicroprocessorisappliedto1974inthenumericalcontrolsystem.Thisisbecauseminiputerfunctiontoostrong,controlledanenginebedabili

6、tytohaveulti-Taie,calleditgroupcontrol),icroprocessoreconomytobereasonable.Moreoverthensmallmachinereliabilityicroprocessorspeedandthefunctionalthoughinsufficientlyarealsohigh,butmaysolvethroughthemulti-processorstructure.Becausethemicroprocessoristhegeneral-purposeca

7、lculatorcorepart,therefores56浅论毕业设计外文翻译_数控机床改造(2)导读：ericalcontrol.In1990,PCmachine(personalputer,domesticcustomhadcalledmicroputer)theperformancehasdevelopedtotheveryhighstage,maysatisfiedlytakethenumericalcontrolsystemcoreparttherequest.Thenumericalcontrolsystemhence

8、forthenteredbasedontillericalcontrol.In1990,PCmachine(personalputer,domesticcustomhadcalledmicroputer)theperformancehasdevel