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关注：1
2013-05-23 12:21
求翻译：若瓦斯浓度超限时，启动备用局扇与原局扇并联对井下供风。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
若瓦斯浓度超限时，启动备用局扇与原局扇并联对井下供风。
问题补充： |
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2013-05-23 12:21:38
If the gas concentration gauge, start the backup local fan in parallel with the former Bureau of the underground supply air fan.
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2013-05-23 12:23:18
If gas concentrations exceeding the limit, when you start to take the stand-by, and the original Board to take the downhole for wind.
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2013-05-23 12:24:58
If the gas density ultra time limit, the start spare bureau fan and the original bureau fan parallel supply the wind to the mine shaft.
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2013-05-23 12:26:38
If the gas concentration limits standby local fan and former local fan underground in parallel to the air supply.
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2013-05-23 12:28:18
If the gas concentration gauge, start the backup local fan in parallel with the former Bureau of the underground supply air fan.
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