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2013-05-23 12:21
求翻譯：Metal ion solutions ranging from 100 to 200 mg dm?3 were prepared and used to evaluate the effect of metal ion concentra-tion on the adsorption process. The optimum pH and adsorbent concentration were then determined as 5.5 and 2.0 g dm?3, respectively used throughout all adsorption experiments. Once the optimum pH had是什么意思？ 待解決
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Metal ion solutions ranging from 100 to 200 mg dm?3 were prepared and used to evaluate the effect of metal ion concentra-tion on the adsorption process. The optimum pH and adsorbent concentration were then determined as 5.5 and 2.0 g dm?3, respectively used throughout all adsorption experiments. Once the optimum pH had
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