Experimental results showed that gas and methane were mainly produced in the second stage digester.

结果表明，气体及甲烷主要是在第二段的中温消化反应器内产生。

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Experimental results showed that gas and methane were mainly produced in the second stage digester.

结果表明，气体及甲烷主要是在第二段的中温消化反应器内产生。

youdao