...程中的变化 宏观煤岩成分： 根据颜色、光泽、硬度和断口等性质不同，可以用肉眼将煤层 中的煤分为四种煤岩成分： 镜煤（Vitrain）:呈黑色，光泽强，是颜色最深、光泽最强的宏观组分；质地均匀、脆性大、 破碎时多呈贝壳状断口。
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structural vitrain 结构镜煤
pre-vitrain 原始镜煤
vitrain c 维生素C
Vitrain Composition 镜质组份
structureless vitrain 无结构镜煤
以上来源于: WordNet
N a type of coal occurring as horizontal glassy bands of a nonsoiling friable material 镜煤
The paper had a coal water mixture test with vitrain coal, bright coal and dull coal from Ningtiaota coal in Shenfu mining area.
选择神府矿区柠条塔煤中的镜煤、亮煤和暗煤进行了制水煤浆试验。
The liquefaction experiment results showed that the oil production rate and conversion rate of the vitrain would be higher than the fusain.
液化试验结果表明，镜煤的油收率和转化率都要高于丝炭。
Vitrinite and inertinite were formed distinct peat swamp environment as main origin of vitrain and fusain, which was essential reason for liquefaction properties.
镜质组和惰质组分别作为镜煤和丝炭的主要物源，形成于截然不同的泥炭沼泽环境，致使结构和性质差异大。
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