特厚软煤大采高综放工作面成套装备技术研究
杨正凯, 张金虎, 张宁
Automatic mining technology and equipment for fully-mechanized top coal caving mining face in extra-thick coal seam
煤炭工程 . 2020, (8): 123 -126 .  DOI: 10.11799/ce202008026