由湖南省金属学会有色冶金学术委员会、锰业分会和矿山地质学术委员会联合举办的《湖南矿产开发及提取冶金研讨会》,于1989年12月8～9日在长沙中南工业大学召 By the Hunan Provincial Institute of Metallurgical non-ferrous metallurgy Academic Committee, the manganese industry branch and the Geological Academic Committee jointly organized by the “Mineral Development and Extraction of Metallurgy in Hunan Seminar”, December 1989 8 to 9 in Changsha Central South University of Industry called