1Fractal Structure of Pores and Splits of Coal Combusted Outcrop1-2,52Automatic Drawing of Mining District and Working Face Design Maps3-53Using Fuzzy Hierarchy Analyzing Method to Evaluate Mine Safety6-8,114Study and Action of Ca(OH)2 for Features of Oxidation and Spontaneous Combustion of Coal9-115Computer Simulation of "Three-zone" Division in Gob of Fully Mechanized Caving Face12-14,296Development of Thermal Conductivity Sensor for Coal Mine15-16,187Outburst-prevention Mechanism by Advance Boreholes and Determination of Its Technological Parameters17-188Present State Analysis of Surface Exhaust Axial-flow Fan Used in Small Coal Mines19-20,239Coal Resource Exploitation and Environmental Protection21-2310Measures for Safe Discharge of Mine Gas24-2511Analysis on Cause and Measure of Affecting High Driving Cost of Roadway26-27,4912Matching Condition for Optimum Flow at Two-stage Impellers of Contra-rotary Fan28-2913Discussion on Safety Evaluation of Coal Mines30-31,4414Present State of Coal Mining under Villages and Countermeasures in China32-33,5215Probing into Reasonable Design of Working Section Recovery34-34,3716Transformation and Effect of Ventilation System on Baijigou Mine35-3717Large-scale Blast Design and Construction of Safe Quarrying at Rock Quarry38-39,4118Application of GWJ- 1 Optical Gas Detection Calibrator40-4119Application of Full Cable Anchor Support Technique in Starting Cut Road of Fully Mechanized Caving Face in Loose Seam42-4420Design and Practice of Composite Cooling Works of Pingdingshan No.5 Mine45-47 