短语词组短语potash h alum 钾茂chrome potash alum 铬明矾potash alum potassium alum 明矾chrome e potash alum 铬明矾grained food grade potash alum 食品级钾明矾alum potash 钾明矾alum potash toxoid 明矾沉淀类毒素 返回 potash alum