多规格石高强度开采矿山开拓系统的三维规划设计与施工
唐玉成,方翔,张中雷,崔晓荣

Three-dimensional Planning Design and Construction of Multi-size Stone High-strength Mining Development System
Yucheng TANG,Xiang FANG,Zhonglei ZHANG,Xiaorong CUI
图2 原始CAD地形图
Fig.2 Original CAD topographic map