东欢坨矿8煤层顶板疏放水规律研究
郑燕,马亚杰,张长江,等
The law of coal 8# roof aquifer drain in the No.2 north district of Donghuantuo Coal Mine,Kailuan
煤炭工程 . 2017, (1): 67 -70 .  DOI: 10.11799/ce201701020