Coal Engineering ›› 2019, Vol. 51 ›› Issue (7): 11-14.doi: 10.11799/ce201907003

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Size optimization of narrow coal pillar in fully mechanized caving face under short distance goaf

du jiangtao   

  • Received:2019-03-18 Revised:2019-04-08 Online:2019-07-20 Published:2020-05-09
  • Contact: du jiangtao E-mail:dujiangtao936@163.com