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关注：1
2013-05-23 12:21
求翻译：随着柠檬酸添加量的增加，催化剂的活性首先增加然后下降；在400 ℃、425 ℃、450 ℃下，柠檬酸添加量为12 wt%的催化剂催化活性最好。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
随着柠檬酸添加量的增加，催化剂的活性首先增加然后下降；在400 ℃、425 ℃、450 ℃下，柠檬酸添加量为12 wt%的催化剂催化活性最好。
问题补充： |
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2013-05-23 12:21:38
With the increase in the amount of citric acid, the catalyst activity first increased and then decreased; at 400 ℃ and 425 ℃, 450 ℃, citric acid dosage 12 wt.% Catalyst for catalytic activity of the best.
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2013-05-23 12:23:18
Add citric acid as the increase in the active catalyst to first increase and then decrease; in 400, and 425 ° °C C C , 450 °, citric acid added to 12 wt % of the catalysts catalytic activity.
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2013-05-23 12:24:58
正在翻译，请等待...
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2013-05-23 12:26:38
As the volume of added citric acid increased catalytic activity first increases and then drop at 400 ° c under 425 ℃, 450 ℃, catalytic activity of citric acid added at 12 WT% the best.
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2013-05-23 12:28:18
Along with the citric acid recruitment increase, catalyst activeness first increases then the drop; In 400 ℃, 425 ℃, 450 ℃ under, the citric acid recruitment is 12 wt% catalyst catalytic activity is best.
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