轻型放顶煤工作面尾煤回收工艺研究輕型放頂煤工作麵尾煤迴收工藝研究 경형방정매공작면미매회수공예연구 Research on tail coal recovey technology of fully mechanized top coal caving mining face with light weight hydraulic powered supports
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煤炭科学技术煤炭科學技術매탄과학기술 COAL SCIENCE AND TECHNOLOGY 2006年1期91-92,共2页