run of mine coal

基本解释

This text explains to Xutuan coal mine west breeze well and main well a method, error margin for of run-through measuring analysis with anticipate.
介绍了许疃煤矿西风井与主井之间的贯通测量的方法、误差分析和预计。
According to characteristics of the coal mine production, the article analyses the power supply system in coal mines and discusses the economic run mode of the transformers and the lines.
根据煤矿生产的特点，对煤矿供电系统进行了分析，对变压器、线路的经济运行方式进行了探讨。
The power run steadily, and its brake function was improved apparently, and satisfied with require of safety in production of coal mine.
改进后的制动电源制动性能有了明显提高，运行稳定，能满足煤矿安全生产的要求。