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...
The working principle of gas liquid separator for hydrogenated unit was recommended.介绍了加氢装置气液分离器的工作原理.The structures of 0.5 ML hydrogenated Si ( 100 ) surface are simulated by empirical tight - binding ( ETB ) method.采用经...
I can't spend the rest of my life wishing it hadn't happened. Life goes on.我不能下半辈子一直活在希望这事没有发生的阴影中。生活还是要继续。Not wishing to displease her, he avoided answering the question.为了不惹她生气,他对这个问题避而不答。Wishing you a Merry ...
I was terrible at school and left with few academic qualifications...我的学习成绩一塌糊涂,离校时几乎没有学历。Unfortunately, his partners were crooks and absconded with the funds.不幸的是,他的合伙人都是些骗子,已卷款逃之夭夭了。Prices start at £1,095 per person, i...
The air is rare at high altitudes.高处空气稀薄.Bottoming out near Heron Island, a manta ray can hit much higher altitudes too.可以在鹭鸶岛附近潜至最深处的鬼蝠魟,其实可以更上一层楼.The space shuttle can orbit at altitudes of up to 965 kilometers.这架航天飞机最...