Low ash coal is a precondition to develop a new area of coal utilization.
低灰煤是开发煤炭应用新领域的前提。
White cast iron is cast iron ash carbon content is a bit low.
白口铸铁含碳量较灰口铸铁稍低。
Pulverized coal ash utilization rate is very low in Hunan low grade anthracite-fired power plant.
湘南某电厂采用低品位无烟煤燃烧发电，粉煤灰利用率低。
Pulverized coal ash utilization rate is very low in Hunan low grade anthracite-fired power plant.
湘南某电厂采用低品位无烟煤燃烧发电，粉煤灰利用率低。
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