Using AHP to constitute a structure of coal industry technology system ,tried to obtain the contributions to the development of coal industry system by the subsystem, according to the analysis, put forward suggestion to the development level of coal industry technology and development strategy.

In this paper, cashmere knitwear is dyed at a lower temperature compared to conventional dyeing, and its physical and mechanical properties are analyzed and compared. The results show that cashmere knitwear dyed at low temperature can improve cashmere knitwear quality. It is also shown that cashmere knitwear dyed at low temperature can have improved physical and mechanical properties, especially its strength, abrasion resistance and pilling resistance.