煤矿井下钻机钻孔与机械伤害事故原因分析及对策
皮希宇,李铁,王栓林
The reasons and countermeasures of drilling and mechanical injury accident of drilling rig in underground coal mine
煤炭工程 . 2017, (1): 49 -51 .  DOI: 10.11799/ce201701015