The electricity of coal mine main pumping equipment consuming constilute important statute, its economic operation has important effects to mine production costs.
矿井排水设备消耗的电能占矿井总耗能量的比重很大，其运行经济性对矿井生产成本具有重要影响。
The electricity of coal mine main pumping equipment consuming constilute important statute, its economic operation has important effects to mine production costs.
矿井排水设备消耗的电能占矿井总耗能量的比重很大，其运行经济性对矿井生产成本具有重要影响。
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