基本解释n.[化]二烯同根派生 diolefin相关词英汉例句用作名詞 (n.)The research of coplymerization of ethylene and conjugated diolefin has theory value as well as practical significance.乙烯和共扼二烯烴的共聚郃的研究不僅具有理論價值而且還有實際意義。diolefin更多例句