1Rational understanding and consideration on business strategic decision for coal exploration and design enterprise4-5,45
6Structural parameter discussion and application of three products non pressure heavy medium cyclone16-18
11Assembling technology of equipment for deep inclined fully mechanized longwall coal mining face28-29
15Technical improvement of electric control system for belt conveyor in main inclined shaft of Du'erping Mine36-37
17Application and development of mine flame proof mobile substation in mine electric power supply40-41
18Ventilation of large grounded electric motor in hoist room for air cooling and thermal application42-43