3Study on the Automatic Compensation Devicefor High-voltage Network's Power-factor Based on Microcomputer6-7
4Developing and Manufacturing of Communication Tested Device for Underground Control and Monitoring Outstations8-10
5Long-distance Reset Technique of the Outstation in Microcomputer Control and Monitoring System Used in Coal Mine10-12
6The Application of Petri Net in Fault Diagnosingfor Speed and Voltage Regulated System of Coal Mine Winch15-17
15Automatic Measure and Control System of Heavy Medium Technological Parameter for Cyclone in Coal Preparation Plant and Its Application34-35
16Application Prospect of Comprehensive Information Putting on Network with Wideband in Coal Mine36-37