巨厚煤层无煤柱化分层综放回采巷道布置方式及开采工艺研究
거후매층무매주화분층종방회채항도포치방식급개채공예연구
Research on gateway outlay and mining technology of fully mechanized top coal caving mining in slicing of super thick seam with no coal pillars
저자의 최근 논문