编辑: 没心没肺DR | 2013-07-12 |
10 The schem atic diagram of p ressure relief gas suction from upper fracture zone by the roadw ay on the stope 2.
3 阳泉五矿走向高抽巷抽放卸压瓦斯参数 五矿走向高抽巷抽采卸压瓦斯参数如表
2 所示.表2阳泉五矿走向高抽巷抽采卸压瓦斯情况 Table
2 The discharging gas suction by the roadway on the stope in Yang Quan m in ing district 工作面 开始卸压 距离 m 抽采瓦斯纯流量 (m
3 ・m in- 1) 最小 最大 ........