cation A阳离子Acationn.阳离子cationic copolymerization阳离子共聚合cation exchange mechanism阳离子交换机理cation-exchange polymer阳离子交换聚合物cationic modified gelatin阳离子改性明胶cationic blue dye X-GRL阳离子蓝染料X-GRLCation-ExchangeCapacity吸蓝量cation-exchange packing阳离子交换填充物cationic organic compound阳离子型有机化合物cationic dispersant agent阳离子型分散剂cationdriven cotransporter阳离子驱动性协同转运蛋白