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浣辰阁: 金币+30, 翻译EPI+1, ★★★★★最佳答案 2015-01-09 15:16:26
It is certain that the concentration of small molecules in the permeate was zero when they were removed completely. In contrast, the concentration of materials in the solution was unchanged. This is the turning point that the filtrations turned from concentration-dependent into constant concentration processes.
注：
1、“渗透液中浓度为零”，我的理解是指小分子浓度为零；
2、“浓差过滤转变为恒浓过滤”，是否是指该过滤由浓度依赖性变为非浓度依赖性？若是，则可将后面一句话改动一下，成为：
It is certain that the concentration of small molecules in the permeate was zero when they were removed completely. In contrast, the concentration of materials in the solution was unchanged. This is the turning point that the filtrations turned from concentration-dependent into concentration-independent processes. |
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