Study on Gas Emission Law and Pre-drainage Effect of Low Permeability Coal Seam

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Modern Mining ›› 2020, Vol. 36 ›› Issue (02): 181-.

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Study on Gas Emission Law and Pre-drainage Effect of Low Permeability Coal Seam

Jia Niujun

Online:2020-02-25 Published:2021-09-12

Abstract

Jia Niujun. Study on Gas Emission Law and Pre-drainage Effect of Low Permeability Coal Seam[J]. Modern Mining, 2020, 36(02): 181-.

Study on Gas Emission Law and Pre-drainage Effect of Low Permeability Coal Seam

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