Besides the usual ways of familiar phonetic notation,Shuo Wen Jie Zi also has three special ways of pho-netic notation for pictographic characters,namely,the way of improper explanation,the way based on voice of something,and the way of calling something.

This paper taking one-hidden layer combined BP network model used in the fault diagnosis of power transformer as a exapmle and on the based of training flow process chart, points out that the number of hidden nodes, initial weight values, training error, the max training times and the order of training samples have different influence on the BP network generalization.

This theory shows that genetic algorithm,which uses minimum marginal as fitness function and where error is less than 50%,can have convergence influence on training error regarding two kinds of problems and have boundary on the general-ization error of testing integration.

This problem only causes a waste of neurons,but also results in the training error too great to meet the request of training precision and hardly completes the task of classification or clustering.

Based on Xunzi Commentaries, the thesis tries to discuss the exegesis error of the scholars, such as Yangliang in The Tang Dynasty and Wangniansun in the Chin Dynasty, etc.