页岩比其他岩石将燃气困得更紧。
霍沃斯和他的同事综合这些因素认为页岩气的温室气体足迹比每单位能煤炭要高20%甚至高出一倍。
Howarth and his colleagues conclude that the greenhouse gas footprint of shale gas can be as much as 20 percent greater than, and perhaps twice as high as, coal per unit of energy.
提取页岩气比从地面抽取其他碳氢化合物更具破坏性——比起生产同等的常规天然气需要下沉更多的勘探井。
Extracting shale gas is more disruptive than hoicking other hydrocarbons out of the ground-far more Wells must be sunk than are needed to produce the same quantity of conventional gas.
但在100年的时间范围内，使用天然气肯定比使用煤炭对气候的影响要小，但页岩气去比煤炭的影响大。
Over a 100-year timeframe, conventional gas is almost certainly better than coal - but shale gas could be worse.
页岩气井水力压裂过程中产生甲烷的浓度比之前报道的9000倍。
Methane levels from the hydraulic fracturing of shale gas were 9,000 times higher than previously reported.
页岩气井水力压裂过程中产生甲烷的浓度比之前报道的9000倍。
Methane levels from the hydraulic fracturing of shale gas were 9, 000 times higher than previously reported.
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".
页岩气现占美国天然气量得百分比从05年的4%增长到了23%。
Shale now provides 23% of America's natural gas, up from 4% in 2005.
研究结果表明，膨胀性泥页岩填料的承载比（CBR）和回弹模量主要受制样含水量及干密度的控制；
The results have shown that the CBR and resilience modulus of expansive shale were mainly controlled by moisture content and dry density.
第四纪红土土壤全氮含量较高，但是其碱解氮含量比花岗岩母质土壤和紫色砂页岩土壤低。
Quaternary red clay total nitrogen content was highest, but the available nitrogen content was lower than Granite soil and Purple sandy shale soil.
然而，即使Cuadrilla的奖励比希望的小，地球上充满了页岩石；
Yet even if Cuadrilla's bounty is smaller than it hopes, the earth is riddled with shale rock;
在泥页岩理化性能的测定中，主要选择了阳离子交换容量，比吸水量，泥页岩回收率和泥页岩膨胀率的测定。
When testing shale physics and chemistry properties, we mainly chose to test CEC, specific water absorption, shale recoveries and shale inflation rate.
在泥页岩理化性能的测定中，主要选择了阳离子交换容量，比吸水量，泥页岩回收率和泥页岩膨胀率的测定。
When testing shale physics and chemistry properties, we mainly chose to test CEC, specific water absorption, shale recoveries and shale inflation rate.
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