End slope pressed coal backstoping method for middle and small open-pit mines in Ordos areaTIAN Shukun17-19
Orifices interval charge vibration effect and analysis in the Phosphate MineFU Xuehui, LI Jinyong25-27,30
Modification optimization of 68 station in Fushun East Open- pit MineCHEN Jiwang, LU Bing, ZHANG Decang, MA Zhilong, SUN Kai28-30