<span style="font-size: 11pt; font-family: "微软雅黑","sans-serif"; mso-ascii-font-family: Tahoma; mso-hansi-font-family: Tahoma; mso-bidi-font-family: "Times New Roman"; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">相邻露天煤矿采区间留沟高度经济性分析</span>

张丁，罗怀廷，刘宇，徐昆

Economic analysis of leaving ditch height between mining areas in adjacent open-pit mines

ZHANG Ding, LUO Huaiting, LIU Yu, XU Kun

露天采矿技术 . 2016, (6): 41 -45 .