层间有完整厚岩层的保护层作用研究
张恩强,刘仓,王飞龙,等
The Study of Liberating Effect of Protective Coal-seam When The Interlayer Has Thick and Intact Rock Layer
煤炭工程 . 2015, (1): 81 -84 .  DOI: 10.11799/ce201501026