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关注：1
2013-05-23 12:21
求翻译：安全含氧值：指空气中标准大气压时含氧浓度范围： 通常为19.5%到 23.5%之间。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
安全含氧值：指空气中标准大气压时含氧浓度范围： 通常为19.5%到 23.5%之间。
问题补充： |
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2013-05-23 12:21:38
Safety oxygen value: refers to the air when the oxygen concentration in the range of standard atmospheric pressure: typically between 19.5% to 23.5%.
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2013-05-23 12:23:18
Safety in the air with oxygen value: means when standard atmospheric oxygen concentration range: usually 19.5 % to 23.5 %.
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2013-05-23 12:24:58
The security contains the oxygen value: Refers to in the air when the standard atmospheric pressure contains the oxygen concentration scope: Usually is 19.5% to 23.5% between.
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2013-05-23 12:26:38
Oxygen safety value: means the standard atmospheric pressure oxygen concentration range: usually for between 19.5%.
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2013-05-23 12:28:18
Safe oxygen values: standard atmospheric pressure oxygen in air concentration range: usually between 19.5% per cent.
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