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It is still a question whether they are able to get enough coal this winter.

今年冬天他们是否能够得到足够的煤还是一个问题。

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Ordos will lead the way, but it remains to be seen whether its scientists will be as successful with carbon storage as they have been with coal liquefaction.

鄂尔多斯将成为领路者，当地的科学家们在煤液化方面取得了成功，但他们能否在碳储存方面取得同样的成功仍有待观察。

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Now whether clean coal will be too expensive to use no one really knows yet.

FORBES: Getting the Economics of Climate Change Entirely Wrong: Clean Coal Might Be Too Expensive To Use

There is no free lunch whether with coal mining or deep-water drilling, or for those who are honest, in the enormous underlying mining and chemical infrastructure needed to build vast arrays of wind and solar farms.

FORBES: Post Fukushima-- burn more coal and oil, and hire more engineers not regulators

Last year, Mr. Choudhury, the company's chairman, said fear of probes into alleged wrongdoing was slowing decision-making at NTPC over operational issues, including whether to buy overseas coal blocks to reduce supply deficits.

WSJ: Graft Worries Slow India Coal Imports