This article mainly analyses and solves several key problems which are easily neglected or misunderstood in measuring and counting gas and it is of great significance in practice.

分析和总结了在瓦斯测量与计算中容易忽视或误解的几个问题，对瓦斯的测量和计算具有现实的指导意义。

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The method for recognizing gas zone with PND logging data is introduced, which is to overlap the counting rates of a near detector and a far one to recognize gas zone based on certain scale.

介绍了利用PND测井资料进行气层识别的方法，即利用近探测器计数率和远探测器计数率以一定比例进行重叠的方法识别气层。

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Engineering design issues of the cleaning system such as gas collecting equipment, cleaning principle, technical process and counting of dust air flux were briefly explained.

浅述了净化系统的集气设备、净化原理、工艺流程和排风量计算等工程设计问题。

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Today we have roughly 40 percent of our electricity is in clean energy, if you consider the nuclear, the wind, the solar -- natural gas counting half credit.

WHITEHOUSE: Press Briefing