In vitrain bands the density and fractal dimension of fractures related to the thickness and lithotyp...

煤岩结构研究在预测煤透性方面有重要义。

The paper had a coal water mixture test with vitrain coal, bright coal and dull coal from Ningtiaota coal in Shenfu mining area.

选择神府矿区煤中镜煤、亮煤和暗煤进行了制水煤浆试验。