“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	homotopy lifting property homotopy lifting theorem homotopy method homotopy monomorphism homotopy of chain mappings homotopy of chain maps homotopy of mappings homotopy of maps homotopy operation homotopy operator homotopy pair homotopy parameter homotopy path homotopy polynomial homotopy principle homotopy pro-group homotopy property homotopy relation homotopy resolution homotopy resolvent homotopy sequence homotopy set homotopy-simple space homotopy sphere homotopy-stable mapping

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