NMA was hydrogenated to 3 - amino - 4 - methoxyacetanilide ( AMA ) with S - Ni as catalystin liquid phase.以改性的骨架镍为催化剂催化3-硝基-4-甲氧基乙酰苯胺(NMA)液相选择性加氢制备了 3- 氨基 -4- 甲氧基乙酰苯胺 ( AMA ).Isoprene could be deeply hydrogenated to isop...
And then , afterwards, we will tell Wally no more earplugs, okay?后来, 我们再告诉瓦利不要再戴耳塞, 好 吗 ?Steven: That would be great. And , oh, yes. I've already bought earplugs.史蒂文: 那太好了. 哦, 还有, 我已经买好耳塞.Find a quiet corner of the ...
拿伞的人又拐进了拐角处。The man with the umbrella turned the corner again.她撑开伞,沿着河街向前走。She opens her umbrella, and walks up River Street.他是个经验丰富的跳伞者,已经跳过150多次伞了。He was an experienced parachutist who had done over 150 jumps....
The government revoked her husband's license to operate migrant labor crews.政府撤销了她丈夫管理外来打工人群的许可证。The images were captured by TV crews filming outside the base.这些影像是电视剧组人员在外景地拍摄的。The crews of the Card and its consort...