coal-mine drainage的意思|示意

The paper analyzes the prospect of CMM based on investigations on coal output, gas emission and changes of gas drainage quantity in mine areas in China.

文章在分析我国煤矿区煤炭产量、瓦斯涌出量、瓦斯抽放量变化的基础上，提出对我国煤矿区煤层气开发前景的分析。

At present, most drainage systems of all domestic coal mine well adopt conventional means of relay controlling, inspected artificially.

目前国内各矿井的排水系统多采用传统的继电器控制方法，用人工进行监测。

We can conclude that the method that unites lower-sect coal stack method and mobile drainage method is an effective measure in the control of gas in the working face of high gas mine.

由此得出，降段煤垛与移动抽放相结合的方法是高瓦斯矿井回采工作面瓦斯治理的有效方法。

Studies also show that most of mercury in coal can be brought into the environment easily by acid mine drainage (AMD), and this kind of pollution should be paid more attention to.

研究表明，当煤炭被开采堆放到地表后，煤中大部分汞可以被酸性矿井水带入环境中，这一环境污染问题应予以重视。

This paper introduces the main gas extraction and drainage techniques used in Yangquan Coal Mine at present and the application scope and deterministic accordance of these techniques.

主要介绍了阳泉煤矿目前主要的瓦斯抽放技术和方法及其适应范围和确定依据。

Because gas drainage is strong in 3308 workface of Chengzhuang coal mine, stop production often takes place for above-the-common.

成庄煤矿3308综放面由于瓦斯排放量大，多次造成因瓦斯超限停产。