At about 4.30 p.m. Audrey arrived at the office.大约下午4点30分，奥德丽到了办公室。Audrey hung her head when I shouted at her.我对奥德丽嚷嚷时她低下了头.I'll show you the shower, Audrey.我指给你看,淋浴室在哪儿, 奥德丽....
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 ).NMA was hydrogenated to 3 - amino - 4 - methoxyacetanilide ( AMA ) with S - Ni as catalystin liquid phase.异戊二烯在镍基催化剂作用下可深度加氢为异戊烷.Isoprene could be deep...