sewage gas

• 沼气

sewage gas的用法和样例：

例句

1. Bacteria break down the animal waste to form methane gas.
   细菌使动物粪便分解成沼气。
2. The purpose of design is solving landfill gas migration problem and preventing explosion.
   目的是解决上海市老沪闵路垃圾山填埋气体的迁移沼气防爆。