“環己”造句
有機化學家接受了平均平面
環己烷的理論.
Organic chemists accepted the theory of the average planar cyclohexane ring.
環己酮和過氧化物可用來化替過氧化
環己酮.
Cyclohexanone and peroxide may be used in place of cyclohexanone peroxide.
后者經過熱解,就轉變成
環己二烯酮的衍生物.
Thermolysis of the latter furnished the cyclohexadienone system.