单词：stone-like coal
stone-like coal的用法和样例：
例句
- The principles and low pollution process in production of vanadium pentoxide with stone coal containing vanadium are introduced in detail.介绍用含钒石煤生产五氧化二钒的原理和低污染生产工艺。
- 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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