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...
Divide the sauce among 4 bowls.把酱汁分到 4 个碗里。They displayed some bowls of glazed earthenware.他们展出了一些上釉的陶碗.Some bowls were made of pottery and wood.一些碗是用陶土和木头制成的。White ceramicware asas green - splashed bowls and ewers are k...
苏伊士运河探照灯, 但插座和吊柱由建造方提供.Suez Canal searchlight, but socket and davit to be supplied by builder.起动吊柱马达. 准备放艇.Start the davit motor. Ready for lowering.所有救生艇吊柱,滚轮,滑车, 拆检, 清洁,加油并装妥.All sheaves and rollers of life boat davit ...