浞河治理 例句>> 3) Dahe Gold Depotit 大河金矿4) Dahe mine 大河煤矿5) Dahe mine area 大河矿区 1. Through instances of Dahe mine area deep part exploration,demonstrated that the scheme can shorten construction time limit effectively,improved economic effectiveness. 通过大河矿区深部勘探应用实例...