fusain

1. The liquefied water production rate of the vitrain and fusain would be approximately equal and due to the partial reason, the hydroxyl strength of the vitrain and fusain would be approximately same.
   镜煤和丝炭的液化水产率非常接近，其部分原因归因于二者所含的羟基强度近似相等。
2. 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。
3. Study of ESR characteristics of fusain and Durain
   丝炭和暗煤的顺磁共振特性研究
4. Fusain had great reaction rate in initial stage;
   丝炭的初始反应速率较高。
5. Results show that hydrogen-rich macerals are disintegrated while other macerals like fusain, and exinite are resistant to disintegration.
   结果表明：富氢煤的显微组分被分解，而丝炭和角质等煤的显微组分难分解。

noun

1. a stick of black carbon material used for drawing

   Synonym:    charcoal