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echommm

金虫 (小有名气)

[交流] as they migrate through the membranes如何理解?(膜交换)

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.
求标红段翻译。

[ Last edited by echommm on 2010-11-5 at 10:37 ]

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echommm

金虫 (小有名气)

还有最后一两句不明白(我属于死缠型的)
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.
在相邻通道,膜不容许发生吸引离子的移动。这样就形成了去离子的产品水和富离子浓水的交替通道。(意译我自己看不懂,没把握。只好直译,请指正)
7楼2010-11-05 14:24:43
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liuxinlin-yj

金虫 (正式写手)

echommm(金币+2, 翻译EPI+1): 2010-11-05 13:26:41
当(随着)他们迁移通过膜
2楼2010-11-05 12:57:42
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liuxinlin-yj

金虫 (正式写手)

echommm(金币+3): 2010-11-05 13:26:48
当给体系施加一个电流,阳离子膜传递向阴极,阴离子你、膜传递向阳极,随着当离子迁移,孔道内离子消耗掉。因此,去离子水和离子富集的交替的流道形成了。
3楼2010-11-05 13:09:44
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echommm

金虫 (小有名气)

还有有两处不明白:
1. are depleted of ions, as they migrate through the membranes.  
指谁depleted of ions(失电子)?此处they又指什么?
2. In the adjacent channels, the membranes do not allow migration in the direction the ions are drawn.
在相邻通道,膜不容许发生吸引离子的移动。(不理解)
4楼2010-11-05 13:30:23
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