專業(yè)英語課后習(xí)題

1、Unit12.TranslatethefollowingintoChinesematerialsscience材料科學(xué)StoneAge石器時代nakedeye肉眼opticalproperty光學(xué)性能mechanicalstrength機械強度Bronzeage青銅時代integratedcircuit集成電路thermalconductivity導(dǎo)熱系數(shù)?“Materialsscience“involvesinvestigatingt

2、herelationshipsthatexistbetweenthestructurespropertiesofmaterials.Incontrast“Materialsengineering”isonthebasisofthesestructurepropertycrelationsdesigningengineeringthestructureofamaterialtoproduceapredeterminedsetofprope

3、rties.“材料科學(xué)”涉及到材料的結(jié)構(gòu)和性能之間的關(guān)系研究。相比之下，“材料工程”是在這些結(jié)構(gòu)性能的相關(guān)的基礎(chǔ)上，設(shè)計材料的結(jié)構(gòu)以生產(chǎn)預(yù)定的一組屬性。?“Virtually”allimptantpropertiesofsolidmaterialsmaybegroupedintosixdifferentcategies:mechanicalelectricalthermalmagicoptical.deteriative.“事實上”固體

4、材料的所有重要特性可分為六個不同的類別：機械，電，熱，磁，光和變質(zhì)。?Inadditiontostructurepropertiestwootherimptantcomponentsareinvolvedinthescienceengineeringofmaterials.namely“processing““perfmance“.除結(jié)構(gòu)與特征外，材料科學(xué)和工程還包括另外兩項重要的研究內(nèi)容，即（材料的）加工與性能。?材料的加工過程不但決

5、定了材料的結(jié)構(gòu)，同時決定了材料的特征和性能.Materialsprocessingprocessdeterminesnotonlytheirstructurebutalsotheiracteristicperfmance.?材料的力學(xué)性能與其所受外力或負(fù)荷而導(dǎo)致的變形有關(guān)。Materialmechanicalpropertiesisrelativewithitsdefmationcomingfromoutsidefceload.Unit

6、22.TranslatethefollowingintoChinesecompositematerials復(fù)合材料nonlocalizedelectrons游離電子advancedmaterials先進(jìn)材料stiffnesses剛性semiconduct半導(dǎo)體biomaterials生物材料smartmaterials智能材料nanoengineeredmaterials納米工程材料?Metalsareextremelygoodcond

7、uctsofelectricityheatarenottransparentvisiblelightapolishedmetalsurfacehasalustrousappearance.金屬導(dǎo)電、導(dǎo)熱能力特別強，對可見光不透明一個拋光的金屬表面具有光澤。?Ceramicsaretypicallyinsulativetothepassageofheatelectricityaremeresistanttohightemperatures