知识库子系统是CAD系统应用知识的关键性构件。
Knowledge repository is the indispensable component of the knowledge based CAD system.
文中利用了智能决策支持系统的基本特点，通过引入一种四库框架模式的设计方法，设计了一个包含知识库子系统的智能决策支持系统目标分配模型。
This paper utilizing the basic features of intelligent decision support system, signs a target distribution model which contains a knowledge base through bring a 4 base frame model.
基于故障树的诊断知识库按照全系统、分系统、子系统、组合和部件等划分。
The fault diagnosis Knowledge base based on fault tree is divided into universal system, branch system, subsystem, units and parts, etc.
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