Journal of Mining and Safety Engineering ›› 2021, Vol. 38 ›› Issue (4): 739-748.doi: 10.13545/j.cnki.jmse.2020.0407

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Support technology of backfill pillar in parallel goaf roadway with large cross-section in super long working face

  

  • Online:2021-07-15 Published:2021-07-27

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