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关注：1
2013-05-23 12:21
求翻译：裂化催化剂在受重金属污染以后，其选择性会变差是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
裂化催化剂在受重金属污染以后，其选择性会变差
问题补充： |
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2013-05-23 12:21:38
Cracking catalyst in the heavy-metal contamination after its selectivity will be worse
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2013-05-23 12:23:18
Catalyst hydrofreezing after heavy-metal contamination in its selectivity will be changed for the worse.
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2013-05-23 12:24:58
The cracking catalyst in receives after the heavy metal pollution, its selectivity meets the variations
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2013-05-23 12:26:38
After cracking catalyst in heavy metal contamination, its selective variation
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2013-05-23 12:28:18
Cracked catalyst is after being contaminated by heavy metal, its alternative will become bad
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