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解决潘西煤矿千米立井井下水自 - 740m水平直排地面的技术难题。进一步提高千米立井排水的实际效果 ,为全国范围的千米立井排水的发提供成熟的技术和有益经验
Solve Panxi coal mine shaft of mine shaft from - 740m horizontal straight ground technical problems. To further improve the actual effect of drainage shaft 1000 km, for the nationwide drainage shaft 1000 km to provide mature technology and useful experience