Coal Engineering ›› 2023, Vol. 55 ›› Issue (3): 73-77.doi: 10.11799/ce202303014

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Study on optimization of hydraulic punching technology in drill holes along seam

  

  • Received:2021-12-28 Revised:2022-08-24 Online:2023-03-20 Published:2023-04-11

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