周围的矿井里的确有沼气聚积。Methane gas does collect in the mines around here.废物腐烂时会产生沼气。As the waste materials decompose, they produce methane gas.目前我国户用沼气推广应用的规模上居国际首位.The application scale of digester is the first one in the world....

“沼气”的英语可以翻译为：methane，fire-damp，gas，marsh gas ...

“沼气”的拼音为：zhǎo qì...

提高厌氧消化速度是工业化生产沼气的核心所在.The improvement reaction efficiency is the key to methane's production on industrializationscale. "一些新能源(例如沼气)的使用,正在农村地区增加.Use of new energies such as marsh gas is increasing in the rural areas...