More ammonium sulphate solution is being recovered in the process of distilling oil shale.
在提炼页程中回收硫酸铵液比去了。
Resinite is a rich n1aceral in Teriary humic coal,boghead-cannel coal and oil shale fromHuangxian Coalfield.
黄县田第三纪腐殖、藻、页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,随着天然气和油页岩的开采,美国已经逐渐近能源独立,已经不再像过去那样需要利雅得了,对沙特不那么在意了。
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