This paper base on the classify of wear and tear, and combine to the condition of wear-resisting material. According to it, analyze the process of wear-resisting material selection. The expert system has been put into use in the process of wear-resisting material selection, at the same time, found the database of wear-resisting material and the process of reasoning. In detail, this paper discusses five-function module of the expert system, and the methods of founding the knowledgebase and database. Briefly introduce the face and menu of the expert system, and explain that this expert system is very effective by an actual example.
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