swamp gas

音標(biāo)發(fā)音

Giant planet GJ 436b in the constellation Leo is missing something--and that something is swamp gas.
位于獅子座的巨大的行星GJ436b正在丟失一些東西，這些東西就是沼氣。
Other types of biogas are called digester gas, marsh gas or even swamp gas, depending on the source of origin.
其他類型的沼氣被稱為沼氣池氣，沼氣等，甚至沼澤氣體，這取決于該產(chǎn)地來源。
www.cn-em.com
Our carbon-based fuels — coal, oil and natural gas — are the fossilised remains of swamp vegetation, buried over hundreds of millions of years.
我們的碳基燃料——煤炭、石油和天然氣——是埋藏了數(shù)百萬年的沼澤植物化石。