Journal of Mining and Safety Engineering ›› 2021, Vol. 38 ›› Issue (3): 625-633.doi: 10.13545/j.cnki.jmse.2020.0565

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Y-shaped ventilation air leakage law of working face of gob-side entry retaining by cutting roof to release pressure

  

  • Online:2021-05-15 Published:2021-06-08

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