【正文】
輻射 electromagnetic radiation材料加工 processing of materials 彈性模量(模數(shù))elastic coefficient,科學(xué)家才終于了解材料的結(jié)構(gòu)要素與其特性之間的關(guān)系。Biomaterials must not produce toxic substances and must be patible with body tissues.Unit3: 微觀結(jié)構(gòu) microstructure宏觀結(jié)構(gòu) macrostructure 化學(xué)反應(yīng) chemical reaction 原子量 atomic 電荷平衡 balanced electrical charge帶正電子的原子核 positively charge nucleu 從我們呼吸的空氣到各種各樣性質(zhì)迥異的金屬,成千上完中物質(zhì)均是由100多種院子組成的。In engineering applications , permeability is often expressed in relative , rather than in absolute , terms .Unit5: 實(shí)驗(yàn)樣品 test specimen靜負(fù)荷 static loading 作用力 applied force垂直軸 normal axis工程應(yīng)變 engineering strain 臨界應(yīng)力 critical stress屈服強(qiáng)度 yield strength應(yīng)力面積 stress area應(yīng)力應(yīng)變曲線 stressstrain curve 1. 通常,溫度低于室溫時(shí),金屬合金的強(qiáng)度性質(zhì)降低,而延展性、破碎韌度和拉伸性能增強(qiáng)。 Materials and society are interlinked, and it is only rational that we should see a close relation between the MSE research agenda and societal issues that affect the human condition on the globe.Unit7:離域電子 delocalized electrons 電子結(jié)構(gòu) e lectrical structure堿土金屬a lkaliearth metals 核電荷 nuclear charge 化學(xué)電池 electrochemical cell 核電荷 nuclear charge 導(dǎo)電性 e lectrical conductivity價(jià)帶 valence bands離子晶格