杏花煤矿提高资源回收率的做法经验和效果

Coin Mine Xinghua Raise Rate of Recovery of Resources Law,Experiense and Effect

通过实例说明,矿井在生产过程中,提高资源回收率的做法、经验,以及取得了良好的经济效益。

Make a summary:Indicate through the instantiality mine shaft in produle in the process,raise the rate of recovery of resources do law,experience and obtained the good scripture benefit.