The IGRT equipment comprises traditional linear accelerator combinated with image system, helical tomotherapy and image- guided stereotaxic targeted therapy.

The procedure and method of TBM quickly driving across fracture zone are presented in this paper.

To meet the needs of coal fall down mining technology, the technical reformation have been made on 6mg200w shearer and therefore it can use in the big seam Angle, more ore and seam broken condition.