基本解释無環烴词组短语短語acyclic c hydrocarbon 無環烴Acyclic aliphatic hydrocarbon 開鏈烷烴unsaturated acyclic hydrocarbon 不飽和無環烴;不飽和鏈烴saturated acyclic hydrocarbon [有化]飽和無環烴acyclic hydrocarbon更多词组专业释义經濟學無環烴化學無環烴