1Carrying out Administration According to the Law to Promote Safety Production to Develop Healthily4-6
2Results of Killing Three Birds with One Stone Can Be Achieved by Doing Well in Methane Drainage and Utilization7-8,18
7Preliminary Discussion about Experiences of Production Man-agement on Coal Faces While Using Automatic Plough24-26
15Application of KXL- 1 Low-voltage Selective Earth Leakage Protection Installation in Local Coal Mine56-58