cation A阳离子Acationn.阳离子cation-anion interference阳离子-阴离子干扰cationic copolymer emulsion阳离子共聚物乳液Cationic indirect flotation阳离子反浮选cationotropic rearrangement正离子转移重排cation and anion co-doped阴阳离子复合掺杂Cationic gemini surfactants阳离子型双子表面活性剂cationic modification agent阳离子改性剂cation surface active agent阳离子表面活性剂cation-exchange membranes阳离子交换膜cationization of pulp fiber纤维阳离子化