Comprehensive Evaluation of Stability of Threshing and Redrying Lamina Product

In order to understand the comprehensive stability of lamina structure from different threshing and redrying factories,the stability of lamina samples from ten threshing and redrying factories in our country was analyzed by grey relation analysis method and system cluster.The results showed that: the comprehensive stability of lamina structure from different threshing and redrying factories,from big to small,was E F H D G C A B I J;the correlation level of grey correlation degree between relevant sequences that were threshing and redrying factories and the optimal sequence was as follows: the correlation level between E and the optimal sequence reached remarkable level and F,H,D reached significant level and others was not significant;the system cluster results were following: F,H,D as a class had good stability and G,C,A,B,I as a class had poor stability and J as a class had poorer stability.