unusual gas gush 瓦斯异常涌出
The management methods of separating source gas are narrated in view of gas origin quantity, each source gas gush and change rule of gas gush.
重点叙述了针对瓦斯来源个数、各源瓦斯涌出量的大小及其涌出变化规律进行治理的分源瓦斯治理方法。
To grasp the coal seam gas control content and gas gush rules can efficiently stop gas, avoid gas accident and accumulate gas preventive measures.
掌握各煤层瓦斯含量及瓦斯涌出规律，为有效地采取可靠措施进行瓦斯治理积累了经验，对保证生产杜绝瓦斯事故起到了积极的作用。
However in the productive practice of mining, the gas gush quantity in dig working face is different with the gas fountain, it often shows abnormity.
而在许多矿井的生产实践中，掘进工作面瓦斯涌出量却显示出与直接源涌出量不一致的特性，常常出现瓦斯涌出异常现象。
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