Journal of Mining and Safety Engineering ›› 2021, Vol. 38 ›› Issue (5): 911-918.doi: 10.13545/j.cnki.jmse.2021.0174

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Determination of fully-mechanized top coal caving law and parameters of thick lower seam in ultra-close multiple-seams

  

  • Online:2021-09-15 Published:2021-09-28

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