The paper introduces the current situation of the power supply system in Wulan Coal Mine, and following the general plan of tapping the northern potential by Ningxia Coal Mining Group Co.

本文介绍了乌兰煤矿供电系统的现状，按照宁夏煤业集团公司“北部挖潜”战略的总体部署对供电系统作出的改造方案。

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Based on investigation of current situation of shallow groundwater pollution in the Linhaitong mine, the paper analyzed its general features, and discussed its mechanism and trend.

通过对临海童矿区浅层地下水污染现状的调查，分析了该矿区浅层地下水污染的基本特征，并对浅层地下水污染机制及趋势进行探讨。

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The design is the Luling coal preparation plant, the first part of this thesis introduces the position of plant area and general geography situation and the base of raw coal of Luling Mine.

本设计是芦岭选煤厂的主厂房，这篇论文首先介绍芦岭矿厂区位置、地理概况和原料煤基地。

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