Journal of Mining and Safety Engineering ›› 2022, Vol. 39 ›› Issue (3): 489-498.doi: 10.13545 /j.cnki.jmse.2021.0168

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Research on Structural Stability of basic Roof trapezoidal Block in the terminal line period of extra-thick coal with fully mechanized mining

  

  • Online:2022-05-15 Published:2022-07-05

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