机电一体化本科班专业英语试卷.doc

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1、注意事项：1、考生要正确清楚的填写以上栏Ho2、如因填写错误、不清楚等造成不良后果者，由考牛:本人负责。试卷编号考试口期兰州石化职业技术学院试卷科目：专业英语PartITranslatethefollowingphrases:（20%）1.内力2.正应力3.冷加工4.不锈钢5.临界温度6.公称尺寸7.铁合金&离心泵9.直流电机10.加工屮心ILautomaticlathe12.commercializedsoftware13.nonfeiTousmetals14.corrosionresistance15.propertiesofmateri

2、als16.electricdischargemachining17.numericalcontrol18.absolutepositioning19.hydraulicpowerdrive20.servomotorPartIIFillintheblanksaccordingtothepassageswehavelearned：（10%）LTheabilitytosupportweightwithoutbendingorbreakingis2.Tolerancemaybeeitheror.3.isaprocessthatissimilart

3、oplanningwoodwithacarpenter'splane.4.canmachineapieceofmetalwithatoolwhichhasmultiplerotatingcuttingedges.5.Themostcommonusedcuttingtoolsusedonlatheare,6.Amonghydraulic,pneumaticandelectricdrivemachines,modelisusuallythemostexpensive,modelisoftentheleastexpensive,andmodelis

4、themostapplicableforpresionjobs.7.TherearetwotypesofcontrolsystemsonCNCmachines:open-loopedandcontrolsystems.8

5、ncesbytranslatingtheChineseinthebracketsintoEnglish.（10%）LSincethesematerialsgenerate,theyaremostsuitableformeasuringforce-derivedvariables.（一彳〜与施加力成比例的输出电荷）2.Theseemployofacoilmovinginamagneticfield.（一个广为人知的发电机原理）3.,becauseofthesmallsizeofthermocouple.（局部点的温度可以被测定）4.Atrans

6、ducerisadevicewhichanoptical,mechanical,ormorecommonly-electricalsignal.（把被测量车专换为）注意事项：1、考生要正确清楚的填写以上栏Ho2、如因填写错误、不清楚等造成不良后果者，由考牛:本人负责。试卷编号考试口期印刷份数5-Transducesareclassifiedaccordingto•(转换原理和测量形式)PartIVAnswerthefollowingquestionsbriefly.(10%)1.Thepropertiesofmetalcanbeclassif

7、iedintothreecategories,whatarethey?2.Whatarethefivebasictechniquesofmachiningmetal?3.Howmanycategoriescannumerialcontrolmachinesbegenerallyclassifiedaccordingtopowerdrives?Andwhatarethey?4.Whatistolerance?5.Comparedwithconventionalmachines,whatarethedisadvantagesofCNCmachin

8、es?PartVTranslatethefollowingparagraphsintoChinese:(40%)1.Steelisanalloyofironandc