“沼气”造句

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.

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