firedamp meaning in English

甲烷
坑气
矿井瓦斯
沼气

Automatic firedamp detector
自动沼气检定器
Automatic firedamp alarm
自动沼气报警装置
Emission of firedamp
沼气泄出
Test method and judge rules of safety of permissible explosive for coal mining in firedamp
煤矿许用炸药井下可燃气安全度.试验方法和判定规则
Caplights for use in mines susceptible to firedamp - performance and other safety - related matters
有火灾危险的矿井用帽灯.性能和相关规范安全规定

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