释义 |
me.thane5mi:7WeInn [U]a colourless gas without a smell which is often used as a fuel甲烷,沼气Natural gas is composed of methane, ethane, propane and butane.天然气由甲烷、乙烷、丙烷和丁烷组成。A major contributor to the destruction of the ozone layer is the methane produced by cows.一个破坏臭氧层的主要因素是牛制造的甲烷。
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