常見例句The Alkene Double Bond: A Focus of Reactivity. 21烯烴的雙鍵:重點是反應活性。One atom of oxygen is linked to the nitrogen atom by a double bond. 一個氧原子以雙鍵與氮原子相連。Compared with diolefine rubber,EPDM has less double bond. 與二烯烴橡膠相比,EPDM的雙鍵很少。In the ethyne molecule, a double bond links together the two carbon atoms. 在乙烯分子中是由一個雙鍵將兩個碳原子連結(jié)在一起的。An organic compound containing many double bonds. 多烯一種包含許多雙鍵的有機化合物The triple bond does not usually react so vigorously at a carbon-carbon double bond. 三鍵在反應時一般不象烯烴中的碳-碳雙鍵那樣劇烈。 返回 double-bond