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关注:1
2013-05-23 12:21
求翻译: Antimony and its compounds(including antimony trioxide) is less than the threshold level, 1000ppm.是什么意思? 待解决
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- 离问题结束还有
Antimony and its compounds(including antimony trioxide) is less than the threshold level, 1000ppm.
问题补充: |
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