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在已建立的电除尘器故障诊断专家系统知识库的基础上，对电除尘器故障诊断专家系统的推理机制及搜索策略进行了较为深入的研究。采用精确反向推理机制建立了该专家系统的推理机，故障树的搜索采用启发式深度优先搜索策略。在 Ｔｕｒｂｏ Ｐｒｏｌｏｇ专家系统语言环境下，进行了电除尘器故障诊断专家系统推理机的程序设计。
Based on the established knowledge base of fault diagnosis expert system of ESP, the inference mechanism and search strategy of fault diagnosis expert system of ESP are studied in more depth. The reasoning machine of the expert system is established by the exact reverse reasoning mechanism, and the search of the fault tree uses the heuristic depth-first search strategy. Under the language environment of Turbo Prolog expert system, the program design of expert system inference engine of electrostatic precipitator fault diagnosis was carried out.