受压水经过半渗透膜，使得水分子能通过，而更大的离子却不会通过。
Pressurized water is passed over a semi-permeable membrane which allows the passage of water molecules while rejecting the passage of larger ions.
钠离子浓度和血管内渗透压以及组织间隙渗透压通过血管膜保持平衡。
Sodium concentration and osmolality in the intravascular and interstitial Spaces equilibrate across the vascular membrane.
本文介绍了离子交换膜的渗透汽化研究工作。
The study of pervaporation through ion exchange membranes is reviewed.
三种抗衡离子膜的平衡吸收实验表明，该阴离子膜的选择渗透性不仅与醇水在膜中的溶解度有关，而且取决于平均扩散系数。
The equilibrium absorption studies indicate that the permselectivity of the anion exchange membrane is related not only to the component solubility, but mean diffusion coefficient as well.
介绍了全膜水处理系统中超滤设备、反渗透设备、电去离子设备的工作原理，以及这些设备运行时主要参数的控制。
The paper introduces the principles of UF, ro, EDI equipment in the water-treating system, and the control of the operational equipment influential parameters.
上述反渗透膜是附着有聚乙烯醇的反渗透膜，其特征在于，该聚乙烯醇为离子性聚乙烯醇。
The reverse osmosis membrane has a polyvinyl alcohol adherent thereto, and is characterized in that the polyvinyl alcohol is an ionic polyvinyl alcohol.
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。
More preferably, an ionic polymer other than PVAs is further adhered to the resultant reverse osmosis membrane.
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。
Preferably, a cationic PVA is adhered to a reverse osmosis membrane and then an anionic PVA is adhered thereto.
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