Design of signal generator for mine-used mud pulse wireless measurement while drilling by LI Quanxin, CHU Zhiwei

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Novel cable measurement while drilling device used for directional drilling in coal mine by FANG Jun, SHI Zhijun, LI Quanxin, GAO Jun

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Drilling experiment research on bedding directional drilling of soft—fragmentized coal seam of Qinglong Coal Mine by LI Quanxin, FANG Jun, CHU Zhiwei, LIU Fei

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Research on trajectory control of dual-power composite directional drilling in underground coal mine by LI Quanxin, CHU Zhiwei, XU Chao, YANG Dongdong

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Adaptive control method for drilling robot based on coal and rock drillability by LI Wangnian, ZHANG Youzhen, TIAN Hongliang, LI Quanxin, WEI Hongchao

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