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Approach to increasing the quality of pressure-relieved gas drained from protected coal seam using s
[期刊论文] 作者：Yingke Liu,Fubao Zhou,Jianlong,
来源：国际煤炭科学技术学报：英文版 年份：2015
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[期刊论文] 作者：Yingke Liu,Fubao Zhou,Jianlong Wang,Jun Liu,
来源：国际煤炭科学技术学报（英文） 年份：2015
...
Approach to increasing the quality of pressure-relieved gas drained from protected coal seam using s
[期刊论文] 作者：Yingke Liu,Fubao Zhou,Jianlong Wang,Jun Liu,
来源：煤炭学报（英文版） 年份：2015
During mining of lower protective coal seam, a surface borehole can efficiently extract not only the pressure-relieved gas from the protected layer, but also th...
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