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关注：1
2013-05-23 12:21
求翻译：气体使用：N2H2混合比例，N2H2的作用及纯度，压缩空气转换真空的原理是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
气体使用：N2H2混合比例，N2H2的作用及纯度，压缩空气转换真空的原理
问题补充： |
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2013-05-23 12:21:38
Gas Use: N2H2 mixing ratio, N2H2's role and purity, the principle of vacuum compressed air conversion
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2013-05-23 12:23:18
gas use: N H 2 2 2 H N mix 2, and the fineness of the role of the vacuum, compressed air conversion principles
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2013-05-23 12:24:58
Gas use: N2H2 proportion of mixture, N2H2 function and purity, compressed air transformation vacuum principle
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2013-05-23 12:26:38
Gas use: N2H2 mix, effects of N2H2 and purity, conversion of compressed air vacuum principle
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2013-05-23 12:28:18
Gas use: N2H2 mix, effects of N2H2 and purity, conversion of compressed air vacuum principle
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