“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	Poincaré lemma Poincaré-Lighthill-Kuo method Poincaré manifold Poincaré map Poincaré mapping Poincaré method Poincaré metric Poincaré model Poincaré pair Poincaré-Perron method Poincaré polynomial Poincaré problem Poincaré recurrence Poincaré recurrence theorem Poincaré representation Poincaré return map Poincaré return theorem Poincaré section Poincaré separation theorem Poincaré series Poincaré-Siegel theorem Poincaré space Poincaré sphere Poincaré's surface of section Poincaré theorem

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