例句與造句

1. Mgo , sr ( no3 ) 2 , eu2o3 , dy2o3 . the transitions from sol to gel and from gel to luminescent crystal were studied with xrd tg - dta
   采用xrd 、 tg - dta等方法詳細研究了由溶膠向凝膠轉(zhuǎn)變和凝膠向發(fā)光晶體轉(zhuǎn)變的過程。
2. Si - based - luminescent crystal materials have very extensive and potential applications . however , high - quality epitaxial wafers are difficult to be grown on si substrate
   Si基-族發(fā)光晶體材料具有極其廣泛和潛在的應(yīng)用前景，然而在si襯底上卻難以生長出高質(zhì)量的外延片。
3. It's difficult to find luminescent crystal in a sentence. 用luminescent crystal造句挺難的