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Coal Engineering ›› 2021, Vol. 53 ›› Issue (11): 81-85.doi: 10.11799/ce202111016

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Three-machine Equipment Matching and Benefit Analysis of Extended Mining Face with Large Mining Height in Shallow Coal Seam

  

  • Received:2021-10-26 Revised:2021-11-11 Online:2021-11-20 Published:2022-01-05

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