1、The scope of this kind of goods include natural marsh gas and artificially made methane.
本貨物的范圍包括：天然沼氣和人工生產(chǎn)的沼氣。

2、In addition, the yield of energy from unit land of marsh gas is the highest.
另外，沼氣的單位土地能量產(chǎn)出率是最高的。

3、Use of new energies such as marsh gas is increasing in the rural areas.
一些新能源(例如沼氣)的使用，正在農(nóng)村地區(qū)增加。

marsh gas翻譯