diolefin

英 [daɪ'əʊləfɪn] 美 [daɪ'oʊləfɪn]

• n. [化]二烯

例句

用作名词 (n.)

1. The research of coplymerization of ethylene and conjugated diolefin has theory value as well as practical significance.
   乙烯和共扼二烯烃的共聚合的研究不仅具有理论价值而且还有实际意义。