More preferably, an ionic polymer other than PVAs is further adhered to the resultant reverse osmosis membrane.
进一步优选在上述反渗透膜上进一步附着PVA以外的离子性高分子。
Preferably, a cationic PVA is adhered to a reverse osmosis membrane and then an anionic PVA is adhered thereto.
优选在反渗透膜上附着阳离子性PVA之后，附着阴离子性PVA。
Preferably, a cationic PVA is adhered to a reverse osmosis membrane and then an anionic PVA is adhered thereto.
优选在反渗透膜上附着阳离子性PVA之后，附着阴离子性PVA。
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