dimethyl pentene二甲基: dimethyl戊: the fifth of the ten Heavenl ...烯: alkene; olefince2,3-二甲基戊烯紫草宁: tetracry-shikonin甲基戊烯: methyl amylene; methyl p-entene; methylpentene下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:二甲基戊烯，即可在微信中查询翻译
