low-quality anthracite
英
美
- 劣质无烟煤
双语例句
- From the coal rank and the combustion characteristics and kinetic analyzing results, the stone coal should be classed as a high rank and maggy anthracite coal.
根据煤阶和燃烧特性及动力学分析判断，石煤属于高变质的劣质无烟煤。
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