当稍微加热时，二氧化碳又转变为气体，这样，气态二氧化碳就可以从地下抽取出来或者输送到其它的储存装置中区。
When heated somewhat, the carbon dioxide reverts to a gas that can be pumped underground or into another storage facility.
页岩储藏气体比其他岩石更密封，要从中抽取就必须用海量淡水在高压下炸开页岩并，这种方法叫做水压致裂法。
Shale traps gas more tightly than other rock. To extract it, the shale is blasted with huge volumes of fresh water at high pressure, a practice known as hydraulic fracturing, or "fracking".
并根据实践经验介绍了抽取填埋气体的方法。
Extraction method of landfill gas was introduced based on practice experience.
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