coal mine methane 煤矿瓦斯 ; 煤层气 ; 井下抽放煤层气
The coal mine methane 煤矿瓦斯利用
coal mine methane cmm 煤矿区煤层气
CMM Coal mine methane 煤矿抽放瓦斯
drained coal mine methane 抽放瓦斯
oxygen-blend coal mine methane 含氧煤层气
oxygen-bearing coal mine methane 含氧煤层气
coal mine ventilation air methane 煤矿乏风
Coal Mine Stationary Methane-Monitor Breaker 煤矿用固定式甲烷断电仪
The paper introduces the exploitation and development situation of coal-mine methane of Shanxi province, presents the goal, key of advancement and ten projects of Shanxi coal-mine methane development.
介绍了近年来山西煤层气勘探开发进展情况，提出了山西煤层气开发利用的推进目标、推进重点及十大工程。
Hydrogen sulfide leaks, methane explosions, mine-stope collapses, oh my! Coal mining is an ancient profession, and has been recognized as wildly risky since the very start.
硫化氢泄露、甲烷爆炸、煤矿坍塌，天呢，太危险了！煤矿开采是一种古老的职业，有史以来，就一直被认为是风险极高的职业。
The recent research method and main objective on coal mine methane sensor is explained with research experience and analysis is gived in this paper.
结合作者的研究经验，介绍了矿井瓦斯传感器目前的状况、近代研究中常用的方法和当前主要的研究方向。
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