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.环丁烷主要成 “ 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 # solv...
我们玩抛石跳掠水面的游戏.We skipped stones over the water.文章介绍水下抛石护岸施工质量控制措施与检验的内容.The article explains the construct quality control and check methods of underwater riprap bank in detail.在港口围埝工程中,常用的埝体材料有袋装草袋土、抛石、混合灰等.Bag soil fill...
At the same instant from behind the curtain swelled the invisible and softest music.这时,从帷幕后传来虚无漂缈的轻柔的乐声.We have papered this bedroom in softest grey...我们给这个卧室贴上了极柔和的灰色壁纸。In the fund she is the softest, sweetest, gentlest...