1·Another gas associated with the spread of agriculture is methane.
另一种与农业扩张有关的气体是甲烷。
2·Carbon dioxide and methane in the atmosphere block the escape of heat into space.
大气中的二氧化碳和甲烷阻止热量向太空散发。
3·Early farmers started clearing forests and livestock produced a lot of extra methane.
早期的农民开始砍伐森林，牲畜产生了大量额外的甲烷。
4·Animals produce methane, which is another dangerous greenhouse gas when they burp and fart.
动物打嗝、放屁时会产生另一种危险的温室气体甲烷。
5·The large amount of methane contained in the atmosphere surrounding Neptune stained it blue.
围绕海王星的气层内所含大量甲烷将它染成了蓝色。
1·The project is consisted of a modern hoggery, goose house and methane power plant.
该项目由现代化养猪场、现代化养鹅场、以及沼气发电厂组成。
2·Although the system would consume energy, it would return energy to the grid via methane generation from composting nonedible parts of plants.
尽管该系统会消耗能源，但它会通过从植物不可食用的部分堆肥产生的沼气将能源回馈给电网。
3·That should increase not just the amount of methane collected but also the capacity of the landfill, since waste shrinks as it rots.
这种方法不仅能增加沼气的收集量，而且能增大垃圾填埋场的容纳量，因为垃圾腐烂过程中体积会变小。
4·One largely untapped source of energy, however, is the methane generated by cows on farms around the world.
然而，一种还未被大量开采的能源，是全球农场上奶牛所产生的沼气。
5·Then it would be poured into a closed container called an anaerobic digester, where the decomposing food would start releasing large amounts of methane.
然后，注入一个叫作真空消化器的封闭容器，分解的食物垃圾在这里面开始释放大量的沼气。