论文部分内容阅读
红利煤矿利用巷探和钻探工程在官山段寻找可采煤层,缓和了采掘紧张关系,延长了矿井寿命,取得了较好的经济效益。
Dividend Coal Mine uses the roadway and drilling engineering to look for recoverable coal seams in Guanshan section, alleviating the tension of mining, prolonging the life of the mine and achieving good economic benefits.