Copper - containing catalysts are the most suitable catalysts for producing 1, 2 - propanediol through catalytic hydrogenolysis of glycerol.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....
Action had been taken to speed up the release of cheques.已经采取行动加速支票的发放。Increasing gravity is known to speed up the multiplication of cells.我们知道不断增加的引力会加速细胞的分裂。We'll never get there if he doesn't speed up.如果他不快些...
On a cold day there can be quite a draught from the letterbox.天冷的时候能明显感觉到从信箱那边吹来的过堂风。Peep through the letterbox and see if anyone is at home.透过信箱看家中是否有人.I personally saw him put the letter into the letterbox.我亲眼看见他把信投送到信...
Cross out that last sentence and put this in instead.把最后那句抹了,换上这一句.Cross out this phrase.抹掉这个短语.Your composition will read better if you cross out these worn - out figures of speech.如果去掉这些陈腐的比喻,你的作文读起来就要好一些....
It was the embodiment of princely magnificence.这体现了和亲王相称的富丽堂皇。" And a sombre, but yet a studied magnificence. "显示出一种阴沉而又做作的壮丽.Meili Snow Mountain is world - known for its loftiness, magnificence and mysteriousness.梅里雪山以其...
He is devoting much of his energy to implanting an element of distrust in the community.他竭力在社区内撒播猜疑的种子。Non-identical twins are the result of two fertilised eggs implanting in the uterus at the same time.非同卵双生子是两个受精卵同时在子宫...
You can usually get rid of hiccups by drinking water very quickly.你可以用快速喝水法消除打嗝。They ran out of drink. Which actually didn't bother me because I wasn't drinking...他们把酒喝完了。但实际上这对我来说无所谓，因为我不喝酒。As expected,excessi...