Overburden failure and fissure development characteristics of deep buried extra thick coal seam and fully-mechanized caving mining

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作者：
School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo [1 ]
454000, China
不详 [2 ]
155100, China
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来源：
Dongbei Daxue Xuebao | / 10-15期
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Compendex;
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摘要：
Flow of water
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