文中使用PROLOG程序设计语言，推理机采用反向推理方式，构造一个企业管理决策专家系统。
The paper USES PROLOG programme design language and introduces reverse inference into inference engine. In this way, an expert system for enterprise management decision has been established.
描述一种诊断型专家系统，它统属于基于规则的产生式系统，推理机是核心部分，分别采用了正向、反向推理技术。
The system is a rule-based production system. Inference engine is the core part of expert system. We use forward chaining and backward chaining at the same time.
设计了一种全局正向、局部反向的推理方式，并结合改进的与或树深度优先搜索策略建立了专家系统的推理机。
A overall-forward part-backward reasoning way is designed and an expert system reasoning machine is built with improved and-or tree deep priority searching strategy.
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