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关注：1
2013-05-23 12:21
求翻译：久存在的一类化学物质，通过直接或间接的方式在动物和人类体内蓄积、富集，是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
久存在的一类化学物质，通过直接或间接的方式在动物和人类体内蓄积、富集，
问题补充： |
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2013-05-23 12:21:38
Long existence of a class of chemicals in animals and humans through direct or indirect way, accumulation, enrichment,
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2013-05-23 12:23:18
There is a long time for such chemical substances, by direct or indirect in the way of animal and human body, the rich and poor,
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2013-05-23 12:24:58
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2013-05-23 12:26:38
A class of chemicals in the long, through direct or indirect means in animals and the accumulation of mankind, enrichment,
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2013-05-23 12:28:18
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