Butyraldehyde 1,2 proparediol acetal was synthesized by using stannous chloride as catalyst.以非质子酸氯化亚锡为催化剂,催化合成了丁醛-1,2-丙二醇缩醛.Butyraldehyde 1,2 propanediol acetal was synthesized by using stannous chloride as catalyst.以非质子...
The necessary material of 2 - ( 2 - methoethyl ) acetaldehyde diethyl acetal was synthesized in addition.另外还合成了必需原料 2- ( 2- 甲氧基乙氧基 ) 乙醛二乙醇缩醛.Butyraldehyde 1,2 propanediol acetal was synthesized by using stannous chloride...
She was not moving, as if someone had bewitched her.她一动不动,好像着了魔。The doctor is bewitched by Maya's beauty.医生被马娅的美貌深深吸引。He was completely bewitched by her beauty.他完全被她的美貌迷住了。...
The anvil onto which the staples are pressed was not assemble correctly.订书机上的铁砧安装错位.Assemble 50 Elder Druids, 30 Silver Unicorns and 10 Green Dragons do defend it.募集50个德鲁伊长老, 30只银色独角兽和10条绿龙用于防御.Greenpeace managed to asse...