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....
The impellers are kept in their proper relationship to each other by spur gear.液轮之间借助于正齿轮保持彼此正常的关系.Mainly by the impellers, pump body and pump cover composition.主要由叶轮 、 泵体和泵盖组成.Welding is one of the important technologie...
我想离婚，以求解脱。I wanted a divorce. I wanted to get away.他再无所求，或者说他是这么想的。There was nothing more he wanted, or so he thought.他拒绝退而求其次。He refused to settle for anything that was second best....
You could even put a trellis on your walls and train plants to grow up it.你甚至可以在墙上搭置棚架，让植物攀缘其上。Each courtyard had a grape trellis.家家户户的院子里,也都盖满了葡萄.Somewhat less strength is needed here as compared with a grape trellis.这种...
She always identifies with the underdog.她总是同情受害者....Webb, the underdog in this race.在这次比赛中处于劣势的韦伯Most of the crowd were cheering for the underdog to win just this one time.人群里的大多数人都在为劣势一方鼓劲，希望他哪怕就赢这一次。The underdog team s...