对甘油催化氢解制取1, 2- 丙二醇效果最好的是含铜的催化剂. Copper - containing catalysts are the most suitable catalysts for producing 1, 2 - propanediol through catalytic hydrogenolysis of glycerol.
Please put your cigarette ends into the receptacle provided.请将烟蒂放入提供的盛器里.Nuclear physics has provided extensive experimental support for the mass - energy equivalence.原子核物理学已经为质能等效性提供了广泛的实验证据.The background to the curren...
衬衫放在最上层的抽屉里.The shirts go in the top drawer.最上层的抽屉装着各式各样的外国硬币和钞票。The top drawer held a miscellany of foreign coins and banknotes.像他这样才能出众的人终究会升到最上层的.A man of great ability like him will eventually reach the top....
He stifled his temptation to take hold of Ivy and shake her.他压抑住想要抓住艾薇摇晃她的冲动。Rosanna stifled a huge yawn.罗莎娜想打个大哈欠，但强忍住了。He drank and stifled a belch.他喝水止住了嗝。...
Fathers have the power to dominate children and young people.父辈们有能力支配孩子们和年轻人的生活。It is appropriate that Irish names dominate the list.名单上大部分是爱尔兰名字，这没什么不合适的。Jones had set out to intimidate and dominate Paul.琼斯开始恐吓并控制保罗。...