The price of thermal coal, used to fire power plants, has surged above the psychological $100 a tonne barrier for the first time in more than a year as the wave of cold weather exacerbates China's swing from exporter to importer.
随着寒潮推动manbetx3.0 加快从出口国转变为进口国，发电用动力煤的价格一年多来首次突破每吨100美元的心理关口。
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