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分析了梅河矿二井5103区预抽、掘进、回采期间瓦斯涌出特点,介绍了5103区煤巷多钻孔封闭式预抽瓦斯技术的应用。
The characteristics of gas emission during pre-pumping, driving and recovering in 5103 block of No.2 Well in Mehe Mine were analyzed. The application of multi-borehole closed pre-drainage gas technology in 5103 coal seam was introduced.