Research on long distance fully mechanized top coal caving mining face in typical "three soft" seam张明毅, 田昭军5-7
Comments on design of downward belt conveyor with long distance and low inclined angleCHEN Xu-zhong15-17
Introduction on reconstruction project of control system for Heidaigou Coal Preparation Plant张剑峰, 连爱戎19-21
Comments on several technologies to treat slime water in steam coal preparation plantsTIAN Chun-hui, YU Xue-shi21-22
Application of EXCEL to electrically calculate current of single phrase short circuit and othersTIAN Yu23-24