Diisopropyl succinate was synthesized from succinic acid and isopropanol with p - methyl benzenesulfonic acid as catalyst.摘要以丁二酸和异丙醇为原料及对甲基苯磺酸为催化剂,催化合成丁二酸二异丙酯.Diisopropyl phosphite was directly synthesized from phosphoru...
卢森堡草拟了一项英国、法国和德国之间都可以接受的妥协方案。Luxembourg sketched out an acceptable compromise between Britain, France and Germany.他们坐下来,给当地的报纸草拟了一封信.They sat down and drafted a letter to the local newspaper.我们将通知她草拟一份合同.We'll notif...
As the name suggests, wear - resistant electrode, high wear resistance, hardness also high.顾名思义, 耐磨 焊条, 耐磨性能高, 硬度也就高.The process of hypophosphite electrooxidation on a nickel electrode could be well simulated by this mod...
Aircraft production continued to plod along at an agonizingly slow pace.飞机制造业仍旧举步维艰，发展速度之缓很让人头疼。They had to plod wearily on up the hill.他们不得不迈着疲倦的步子登上山.to plod through mud在烂泥里吃力地走He was destined to plod the path of toil....
The train jolted into motion.火车猛地一颠，开动了。A stinging slap across the face jolted her.火辣辣的一巴掌打在脸上，她惊呆了。Henderson was momentarily jolted by the news.亨德森听到这个消息一时目瞪口呆。...
The result of this shearing force is to push the endoplasm forward.这种剪切力作用的结果是推动内质向前.There were lysosomes and endoplasmic reticulum in endoplasm , but it lacked Golgi body and mitochondria.虫体有溶酶体与内质网, 缺乏高尔基体和线粒体....
He couldn't recapture the form he'd shown in getting to the semi-final...他没能找回闯进半决赛时表现出来的状态。trying in vain to recapture his past他试图回忆以前的事情，但却枉然The armed forces have launched offensives to recapture lost ground....