在提炼油页岩的过程中回收的硫酸铵液比过去多了。
More ammonium sulphate solution is being recovered in the process of distilling oil shale.
页岩的开采也许会抑制价格上涨的压力，削弱依赖碳氢化合物的经济依据。
Its exploitation may check the upward pressure on prices, weakening the economic case for reducing dependence on hydrocarbons.
在地下，压力封闭的有效性可以通过计算上层页岩的流体压力剖面来估计。
The effectiveness of pressure seals in the subsurface may be evaluated by making a calculated fluid pressure profile of the overlying shales.
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