“stone-like coal”的概念、定义、翻译、参考文献-科学参考

单词	stone-like coal
释义	stone-like coal Encyclopedia 理学煤成因释 stone-like coal石煤在中泥盆世以前的地层中保存的可燃、低热量、高灰分产率、高变质程度的沉积岩。
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