低瓦斯矿井 meaning in Chinese

low gaseous mine

Discussion on mine ventilation capacity for low gas mine
关于低瓦斯矿井通风能力核定的商榷
Research on gas unusual gush of coalbeds in low gas mines
低瓦斯矿井煤层瓦斯异常涌出的研究
Gas prevention and control of high gassy districts in low gassy mines
低瓦斯矿井中高瓦斯区的瓦斯治理
Gas disaster treatment of gas abnormal emission area in low gas mine
低瓦斯矿井瓦斯异常涌出区瓦斯灾害治理
Gas emission law and comprehensive gas control technique in low gassy mine
低瓦斯矿井瓦斯涌出规律及综合治理技术

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