Metal salts and Carboxy, keto, aldehyde, acetoacetoxy, complexes phosphonic acid, imine, amino and thio.金属盐类和羧基, 酮, 醛, 乙酰乙酸, 配合膦酸, 亚胺, 氨基酸和硫代.This paper synthesized a kind of macromolecule yl schiff base salts.合成了一种大分子视黄...
They went for a quick snog behind the bike sheds.他们去了自行车棚的后面,短暂地拥吻了一下。The firemen pulled down some nearby sheds to stop the fire spreading.消防队员们把附近的一些棚子拉倒,不让火势蔓延.The present sheds a backward light on the world's pre...