这一系统之所以能够比传统发酵方式快一倍有两个原因：第一，通过搅动处理，甲烷能够更快集中到表层。

This works faster than traditional methods for two reasons. The first is that stirring the sludge causes methane to bubble to the surface faster.

youdao

这一系统之所以能够比传统发酵方式快一倍有两个原因：第一，通过搅动处理，甲烷能够更快集中到表层。

This works faster than traditional methods for two reasons. The first is that stirring the sludge causes methane to bubble to the surface faster.

youdao