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关注：1
2013-05-23 12:21
求翻译：催化剂参与催化化学反应，但反应前后本身不发生变化是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
催化剂参与催化化学反应，但反应前后本身不发生变化
问题补充： |
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2013-05-23 12:21:38
Catalysts in catalytic chemical reaction, but itself does not change before and after reaction
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2013-05-23 12:23:18
As a catalyst in catalytic chemical reactions, but does not itself change before and after
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2013-05-23 12:24:58
The catalyst participation catalytical chemistry responded, but around responded itself does not change
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2013-05-23 12:26:38
Catalysts involved in catalysis of chemical reactions, but before and after the reaction itself does not change
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2013-05-23 12:28:18
Catalyst participate in catalyze chemical reaction, but itself change react,
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