cationiten.阳离子交换剂cationn.阳离子cationic/anionic surfactants正负离子表面活性剂cationic hydrocarbon surfactant阳离子烃类表面活性剂cationic double - chamber bed阳双室床cation-exchange chromatography阳离子交换色谱法cationic polyacrylamide emulsion阳离子聚丙烯酰胺乳液cation exchange capacity of root根系阳离子交换量cationic fluorocarbon surfactant阳离子氟碳表面活性剂cation-exchange resin catalyst离子交换树脂Cation exchange capacity of soil土壤阳离子交换cationic/anionic surfanctants阴阳复合表面活性剂