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Keyword [protected coal seam]
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1. Pressure Relief Functional Principle Of Stope Underlying Coal-Rock Mass And Application In Gas Extraction Of Protected Coal Seam
2. Research On The Permeability Variation Of Protected Coal Seam Under The Condition Of Mining
3. Study On Prediction Model Of Residual Gas Content In Protected Coal Seam
4. Evolution Law And Application Research Of Unloading Induced Permeability Of Underlying Protected Coal Seams At Different Distances
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