Based on mathematical theory of polar center alternating,it establishes mathematic modeling that can measure roundness error of shaft parts in engineering,then establishes the data analysis program,and connecting it with data acquisition system,the analysis program is formed.

After the study of Grey System,it was found that the introduction of Range transformation made the data fit th.

Thisarticle shows mainly that the two definitions are equal with Polarization.

In the condition of horizontal or vertical polarized radar target backscatter signal, a polarization transformation technique is proposed which is effective to improve the output SINR and the interference suppression area in polarization domain.

Analysing circle characters and the feasibility of using it to quality assessment of point group generalization,a new method of assessing point cluster geometry quality is developed based on the technique of polarization transformation.

It is put forward that a new kind of pole-changing winding of Phase-group -interchange with A/A A connection and its way of Pole-changing switchover without interruption of POwer supply.