..............page:4-6+25
..............page:29-31+43
Investigation of reasonable three-grade reserves based on fuzzy theory
ZHU Ming-de;XU Meng-guo;GENG Yan-yang;LI Jun-chao;College of Resource and Environment Engineering;Wuhan University of Science and Technology;Hubei Key Laboratory for Efficient Utilization andAgglomeration of Metallurgic Mineral Resources;Jinshandian Iron-ore Mining;Wisco Minerals Co.ltd;
..............page:36-39