metamorphic grade of coal
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美
- 煤变质程度
双语例句
- These findings are significant in understanding of the characteristics of coal petrographic constituents and in separating and enr.
煤岩组分和煤变质程度是影响煤层生储气能力的主控因素。 - Research shows that maceral and the degree of metamorphism of coal rock are key factors that control the generating and storing capacity of coal rock.
煤岩组分和煤变质程度是影响煤层生储气能力的主控因素。
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