More ammonium sulphate solution is being recovered in the process of distilling oil shale.
在提炼的过程中回收的硫酸铵液比过去了。
Resinite is a rich n1aceral in Teriary humic coal,boghead-cannel coal and oil shale fromHuangxian Coalfield.
黄县煤田第三纪腐殖煤、藻烛煤、显微组分富含树脂体。
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At the same time, the U.S., having edged closer to energy independence with natural gas and oil shale, no longer needed Riyadh the way it once did, and was noticeably less attentive.
与此同时，随气和油页岩的开采，美国已经逐渐近能源独立，已经不再像过去那样雅得了，对沙特也明显不那么在意了。
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详细解释
的过程中回收的硫酸铵液比过去
了。
气和油页岩的开采，美国已经逐渐
近能源独立，已经不再像过去那样
雅得了，对沙特也明显不那么在意了。
