low-gas colliery 低瓦斯矿井
Use of Gas Explosion Colliery 煤矿瓦斯的综合利用
colliery gas 煤矿瓦斯
colliery gas burst 煤矿瓦斯爆炸事故
Colliery Gas Forecast 煤矿瓦斯预测
colliery gas explosion 煤矿瓦斯爆炸
Colliery gas burst kills 25 in Chongqing.
重庆煤矿瓦斯爆炸，25人死亡。
The article has introduced the gas geologic features in B4 Coal Seam in Fengcheng Colliery and analyzed the correlation factors of gas occurrence regularity.
本文简要叙述了丰城矿区B4煤层瓦斯地质特征，分析了瓦斯赋存规律相关因素。
This paper introduces the Application of GIS Technology to Colliery Gas Management, the choice and construction of a system platform, the design and implement of main mould.
介绍了GIS技术在煤矿瓦斯管理中的应用：系统平台的选择和组建；主要模块的设计和实现。
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