In view of complexity of coal mining plan management, a management information system of coal mining plan is developed with J2EE platform.
针对矿井采掘计划管理的复杂性，采用J2EE平台开发了矿井采掘计划管理信息系统。
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。
It expounds various mining methods and steps, including the bench demarcated, plan mining bench top and bottom floor, the coal and overburden amount of plan mining, and coal quality indicators.
阐述编制露天矿的各种开采计划的方法和步骤，以及其台阶划分、计划台阶顶底板的控制、编制剥离量和采矿量及其煤质指标等；
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