1. Spatial distribution and application of coal resources in China [J];Wang,2003
2. Evaluation of the washability characteristics of Khushabcoal (Pakistani) by heavy media separation process [J];Sana;Energy & Environment,2017
3. Optimizing product structure and improving coal washing efficiency [J];Lu;Coal processing and comprehensive utilization,1991
4. Benefit analysis of Qingyang coal resources development [J];Liu;Journal of Foshan University of science and technology,2013
5. Ecological restoration and sustainable development of Taoyu coal mine in Zhengning, Qingyang [J];Yue;Gansu science and technology,2014