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关注：1
2013-05-23 12:21
求翻译：为这些纳米材料的安全使用提供了一定的依据是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
为这些纳米材料的安全使用提供了一定的依据
问题补充： |
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2013-05-23 12:21:38
For safe use of these nano-materials provide some basis for
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2013-05-23 12:23:18
These nano materials for use in providing a security based on a set of
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2013-05-23 12:24:58
Has provided certain basis for these nanomaterials safety handling
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2013-05-23 12:26:38
For safe use of these nano-materials provide some basis for
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2013-05-23 12:28:18
For the safe use of these nanomaterials provide some basis
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