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研制开发了在役压力管道缺陷安全评定专家系统并在工程中得到实际应用，为压力管道超标缺陷科学处理提供了有力工具。介绍该专家系统的知识库管理子系统的结构和功能。为提高专家系统问题求解速度，作者引入决策表技术构造了一种新型的知识库内结构规则树，使知识库内规则以规则树形式存在，提高了推理速度，本文将详细介绍其实现方法。
The in-service pressure pipe defect safety assessment expert system was developed and put into practical application in the project, which provided a powerful tool for scientific treatment of excessive pressure pipe defects. Describes the structure and function of the expert system’s knowledge base management subsystem. In order to improve the speed of solving expert system problems, the author introduces a decision-making table technology to construct a new rule structure tree of knowledge base, which makes the rules in the knowledge base exist in the form of rules tree and improves the reasoning speed. This article will introduce its implementation method in detail.