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.
I have always believed that a garden dies with its creator.我一直认为花园的灵魂是与其创造者共存亡的。Walt Disney, the creator of Mickey Mouse沃尔特∙迪斯尼—米老鼠的创作者Creation supposes a creator.创造必须先有创造者....
受保人有否在其他保险公司拥有任何保单?Does insured has any other insurance policy ( ies ) with other insurance company?注: 如有其他受保人, 请另附纸张并填上以上资料.Note: If there are other Insured Persons, please attach a separate sheet with the above informa...
A merry road, a mazy road, and such as we did tread.快乐的路迷宫般的路我们踏行.They have to tread the delicate path between informing children and boring them...他们既要让孩子们了解情况，又不能让他们产生厌烦情绪，不得不小心把握分寸。Turnpikes are not for turkeys! Sandw...
教练员说除前场与中场的位置以外,他不担心其他别的位置; 前场与中场的位置是困难所在.The coach said he wasn't worried about any position except quarterback; that was where the shoe pinches.但是在中场的时候他的确扯开了CELTIC人的防线.But when playing central he really roughed u...