He knew that Karl could be an implacable foe.他明白卡尔可能会成为他的死敌.Karl looked down the street.卡尔朝街尾看了看。...Karl Uggerholt, the financial director of Braun UK.卡尔·乌格洛尔特，贝朗英国分公司的财务经理It was Karl Marx who said, 'Religion is the...
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...