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...
Kittens week to cut a nail, especially the forepaw.每周给小猫剪一次指甲, 特别是前爪.My mum'll have kittens if I'm not home by midnight.要是半夜我还不回家,我妈妈一定很着急.Cats can never change back into kittens.老猫绝变不回小猫.These kittens look exa...
If I get another tummy ache, I will wire you to come.如果我再肚子疼,我会发电报让你来.I ate a big Thanksgiving dinner, and now my tummy hurts.我饱吃了一顿感恩节正餐, 现在胃疼。I've got a sore tummy…我肚子疼。It's easy to get a tummy upset from riv...
He's hypersensitive to any kind of criticism.他对任何批评都受不了。He is hypersensitive to what people say about him.他对别人谈论有关他的事过于敏感." I'm not the least bit hypersensitive.“ 我一点儿不神经过敏....