“mine gas”的概念、定义、翻译、参考文献-科学参考

单词	mine gas
释义	mine gas Encyclopedia 理学矿山工程地质问题释 mine gas矿井瓦斯矿井中主要由煤层气构成的以甲烷（CH4）为主的易燃易爆等气体的总称。
随便看	Birkhoff theorem Birkhoff-Witt theorem Birkin National Park Bir Lehlu Birman Birmingham Birmingham Campaign Birmingham crater Birmingham School Birnbaum Birnbaum theorem birnessite bi-rotation birotunda birret Birtel Birth birth-and-death process birth[-and]-death process birth and death process with catastrophes birth and death urn model birth control birthday birthday attack birthday bronze mirror for Emperor Xuanzong

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