The maceral, proximate analysis, cleats and joint developmental characteristics of the brown coal in Bulianta coalmine, Dongsheng coalfield have been studied.
The maceral, proximate analysis, cleats and joint developmental characteristics of the brown coal in Bulianta coalmine, Dongsheng coalfield have been studied.
详细研究了东胜煤田补连塔矿煤的岩石组成、内生裂隙及外生节理的发育特征。