机电专业英语 中级 谭雪松 杨财荣 unit 8.ppt

Unit8NontraditionalManufacturingProcessUltrasonicMachining(USM)Text1LaserBeamMachiningText2AbrasiveJetMachining(AJM)Text3Grammars(语法)Test4TEXT1UltrasonicMachining(USM)NewWordsandPhrases(生词和短语)Notes(课文注释)ReadingMaterials(阅读材料)NewWordsandPhrases(生词和短语)ultrasonicmachining超声波加工,简写为USMremove[ri5mu:v] ,删除;removal[ri5mu:vl] ,消除depicted[di5pikt] ,描写schematically[ski5mAtikli] [5fri:kwEnsi] ,频率abrasive[E5breisiv,-ziv] [5slE:ri] ,浆液。【例】abrasiveslurry:研磨液brass[br:s] ,黄铜制品copper[5kCpE,5kCpE(r)] [5steinlis] ,不锈的。【例】stainlesssteel:不锈钢converse[kEn5vE:s] ,颠倒的cavity[5kA5viti] [gAp] ,缺口suspend[sE5spend] [vai5breit] ,使摇摆erosion[i5rEuVEn] ,侵蚀。【例】slow-erosionmechanism:缓慢侵蚀的装置degrade[di5greid] ,使退化ultrasonic[ik] ,超声的。【例】ultrasonicmotion:超声波运动transducer[trAnz5dju:sE] ,变频器。【例】ultrasonictransducer:超声波换能器wire[5waiE] ,电线。【例】musicwire:乐弦hypodermic[haipE5dɜ:mik] ,皮下注射用的needle[5ni:dl] ,尖。【例】eedle:注射器针头sine[sain] 。【例】sinewave:正弦波tubing[5tju:bi] ,管道系统simultaneous[simEl5teinjEs] ,同时发生的toolholder[5tu:lhEuldE] 刀夹suctionline吸引管线abrasiveslurry研磨液copperwasher铜垫圈amplifyingtoolholder放大刀柄ultrasonicvibration超声振动silverbraze银钎焊shapedtool形状工具waxweld蜡焊backupmaterial备份资料Notes(课文注释)[1]:USM是一种机械材料切削工艺,用于在硬脆工件内产生孔及型腔。句中which引导定语从句,修饰amechanicalmaterialremovalprocess。[2]urswhentheabrasiveparticles,whilesuspendedintheslurry-filledgap,:当悬浮在充满浆液的间隙内的磨粒受到撞击并通过快速振动的***向工件内部推进时,就会形成材料切削。whilesuspendedintheslurry-filledgap修饰theabrasiveparticles。[3]Inoperation,thepowersupplygeneratesthehigh-powersinewavewhichisusedtocausethetransducer,andultimately,:在操作过程中,电源产生强力正弦波,用于引起换能器,最后是***的振动。短语inoperation:在操作过程中。high-powersinewave:强力正弦波。[4]Wheneverpossible,toolsareconstr