“丁烷”造句

在1,2--二亚甲基环丁烷中并不发生这种现象.
This phenomenon does not occur with 1 - 2 - dimethylenecyclobutane.

丁烷主要成 “ 蝶式 ” 构象存在.
Cyclobutane exists predominantly in a " butterfly " conformation.

四 号 溶剂主要成分为液化丁烷.
The main component in 4 # solvent is liquefied butane.