This paper introduces an automatic controlling method for air mixing system.

介绍一种混配比例有严格要求的气体混合系统自动控制方法.

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The Earth moves rapidly under its blanket of air, mixing the air during this process.

地球在其气体覆盖层下面快速移动, 在次过程中会将气体混合起来.

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And nitrogen - natural gas mixing length is larger than nitrogen - air mixing length by 1 % ~ 2 %.

氮气 - 天然气混合长度比氮气 - 空气混合长度大1%~2%.

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