坚硬煤层地质条件下小煤柱掘进贯通的防冲措施
李照军
Anti-Scour Measures on Small Coal Pillar Driving Through under Hard Coal Seam Geological Conditions
LI Zhao-jun
工业技术创新 . 2021, (2): 153 -157 .  DOI: 10.14103/j.issn.2095-8412.2021.04.027