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as they migrate through the membranes如何理解？（膜交換）
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In ED, alternating anion and cation permeable membranes (called anion transfer and cation transfer membranes) are placed in layers with an anode on one side of the assembly and a cathode on the other. A membrane permeable to cations only is placed nearest to each of the electrodes. When a current is applied to the system, channels where the cation transfer membrane is towards the cathode, and the anion transfer membrane towards the anode are depleted of ions, as they migrate through the membranes. In the adjacent channels, the membranes do not allow migration in the direction the ions are drawn. Thus, alternating channels are formed of deionized product water and ion-rich concentrate stream. 求標(biāo)紅段翻譯。 [ Last edited by echommm on 2010-11-5 at 10:37 ] |
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還有最后一兩句不明白（我屬于死纏型的） In the adjacent channels, the membranes do not allow migration in the direction the ions are drawn. Thus, alternating channels are formed of deionized product water and ion-rich concentrate stream. 在相鄰?fù)ǖ溃げ蝗菰S發(fā)生吸引離子的移動(dòng)。這樣就形成了去離子的產(chǎn)品水和富離子濃水的交替通道。（意譯我自己看不懂，沒把握。只好直譯，請指正） |
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