Under construction : 1.6 million village methane pits .
开工建设农村户用沼气160万户。
And methane is difficult to capture in small volumes at low concentrations .
而且,沼气在微量、稀薄的情况下不易收集。
But scientists haven 't known why landfills make so much methane .
但是科学家们并不知道为什么垃圾填埋场能够产出这么多的甲烷。
Methane has a tendency to explode which soon made this an urgent matter .
甲烷的爆炸倾向很快使这一问题变得很棘手。
There the machine separates solidified methane hydrate into water and natural gas , and funnels the gas up to the surface .
在海下,这台机器把固化的甲烷水合物分解为水和天然气,然后将天然气传送至海平面。
Known as inflammable ice , or clathrates , the new potential fuel is a sherbet-like substance consisting of methane trapped in water ice .
这种新型潜在燃料俗称可燃冰或笼形化合物,是一种果子露状的物质,由被困在水冰中的甲烷构成。
Revised estimates , based on data collected over the last year and released last week , say there are massive deposits of methane hydrate below the sea of japan .
Larger releases of methane from clathrate beds throughout history , known as the actions of a " clathrate gun , " have been responsible for mass extinction events .
Yamamoto disagrees that there is any danger of such blowouts or major environmental damage -- although a small methane hydrate blowout was linked to the bp ( bp ) spill in the gulf .
And that it so happens that mars has plenty of carbon dioxide ( co2 ) and permafrost ( h2o ) , which could be neatly converted into the aforementioned methane ( ch4 ) and liquid oxygen ( o2 ) .