E3S Web of Conferences

Exploration and application of directional long boreholes in coal measure strata

Qin Ke, Peng Dong and Duan Huijun

E3S Web Conf., 261 (2021) 03003

Published online: 21 May 2021

DOI: 10.1051/e3sconf/202126103003

Qin Ke

Peng Dong

Duan Huijun

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