Then the index system of it is set up and the weights of the indexes are made by using the method of two elements contrasting, based on which, a four-stage fuzzy comprehensive evaluation model is established and applied to assess the comprehensive benefits of an ITS project.

This thesis thoroughly studied the techonology of online dielectric loss factor measurement, pointed out the shortcomings of conventional methods, and analyzed the reason for reducing the measurement errors by relative comparison method.

By fundamentals analysis of linearity surveyor of domestic and international and relatively surveyor, design deep-hole linearity surveying system based on relatively surveyor, and study structure and software of that system, for linearity examination have certainly actual significance in deep-hole machining.

Based on binary comparison, a kind of algorithm is presented for resolving the objective weight and relative membership degree of qualitative objects using fuzzy value of relative important degree of adjacentobjects.