Sodium ethylate was used as catalyst in Baker - Venkataraman of cyclization, and all factors were studied. 环合反应采用乙醇钠作为Baker-Venkataraman重排反应的催化剂, 研究了影响反应的各个因素.
...research related to microcomputers and their use in classrooms...关于微型电脑及其课堂使用的研究In many places, classrooms are overcrowded and curricula are outdated.许多地方的教室过于拥挤,课程已经过时.New blackboards have been fitted up in all the c...
A literary image erases the more indolent images of perception.文学意象抹除那些感官的懒惰意象....indolent teenagers who won't lift a finger to help.懒惰的青少年们，连举手之劳都不愿意帮The sultry weather in the tropics encourages tourists to lead an...
When I watch horse racing on television, I wish I was back in the saddle.看到电视上的赛马节目时，我真希望自己能再度跨马奔驰。The armed forces and the hardliners are now going to be in the saddle.武装部队和奉行强硬路线的人即将掌权。Why don't we saddle a couple...
那家工厂一倒闭,成千的工人都失业了.Thousands of workers lost their jobs when the factory closed.成千的科学家已加入研究干细胞的研究团队.Thousands of scientists have joined the research team work on cell study.那个时候只有成千的学者有机会进入高等教育系统.That then just thousands ...
The proposal borders upon the absurdity.这提议近乎荒谬.The absurdity of the situation made everyone laugh.情况的荒谬可笑使每个人都笑了.She recognized the absurdity of dealing with them through intermediaries.她认识到,通过中间人与他们打交道是愚蠢的.empyreal abs...