main mine drainage的意思|示意

In this paper the application of high pressure water jet technology in coal mine main drainage pipeline is discussed briefly.

简要探讨了高压水射流清洗技术在煤矿主排水管道清洗中的应用。

Based on the peculiarity of deep exploiting in Xishimen Iron Mine, the principle and main affecting factors to select drainage scheme for deep exploiting are stated.

针对西石门铁矿深部开采的特点，论述了该矿山深部开采疏干方案选择的原则和主要影响因素。

Through calculation of concrete instance, it is clear that coal mine main drainage pipeline cleaning by high pressure water jet has remarkable economic benefits.

最后通过对具体实例的计算，说明了清洗煤矿主排水管道具有显著的经济效益。

In this paper, the composition and control principle of the automation control system of main drainage pump used in coal mine are introduced.

介绍了一种矿井中央泵房主排水自动化控制系统的组成和控制原理。

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。