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...
Over the past forty years plastics have revolutionised the way we live.在过去的40年中,塑料彻底改变了我们的生活方式。The discovery of the new drug has revolutionised the treatment of many diseases.这种新药的发现已经使许多疾病的疗法起了根本性的变化.In other ways , Mr ...
他的画描绘出法国的神韵。His paintings capture the essence of France.凯鲁亚克有时确能传达那种惠特曼式神韵.Kerouac does manage now and then to convey a Whitmanesque ecstasy.游泳场尽显海滨神韵.The swimming area is as enjoyable as the sea beaches....
他们在大学偶遇,最后结了婚。They had met by chance at university and finished up getting married.由于种种阴差阳错,我30岁时我们结了婚。We got married when I was 30 for all the wrong reasons.其他变化包括对非婚夫妇生育更为宽容的态度。Other changes include more tolerant attit...
这些蜗牛体宽不超过1厘米。The snails are no larger than one centimetre across.从“美体小铺”传来的消息令整个零售行业不安。The news from Body Shop rattled the rest of the retail sector.比利时出现了这种疾病的一种极其危险的变体。A very virulent form of the disease appeared in Be...