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本文详细介绍了高瓦斯回采工作面在“W”型通风方式无法治理瓦斯危害的情况下,采用下行通风后,针对下隅角瓦斯积聚的治理效果。
In this paper, the control effect of gas accumulation in the lower corner after downward ventilation is introduced in detail when the “W” type ventilation mode can not manage gas hazards.