2Application prospect of the semi - continuous excavating technique used in opencast coalmine in China7-8
4Discussion of the effect of inertial force on the antislip balance weight caused by the rope and the friction wheel in friction hoisting16-17
6Talk about the long- distance belt conveyor driven by hydraulic motors at multipoint along the conveyor22-24
8Load test and analysis of the surface antideformation house influenced by the coal mining of fully mechanization using the bulk caving method31-33