With the help of knowledge and experience from many experts, this paper researches the method of knowledge classification and representation, and discusses system designing of dynamic knowledge base.
在获取大量专家知识和经验的基础上，对专家知识进行分类研究并提出相应的表示方法，同时设计了可动态更新的知识库系统。
The hydraulic performance of the sprinkler is a key factor to the quality of the sprinkler system, and the test and the remark are the base of designing and spraying.
喷头水力性能是喷灌系统质量好坏的关键因素，它的测试评价是进行喷灌工程设计、施工以及进行喷灌的基础。
Analyzes the logical status of pumps and valves of the cargo system, which establishes the base of designing the monitoring software of cargo main system.
本文分析了货油系统管路的泵阀工作状态逻辑，为货油装卸主系统的软件设计奠定了理论基础。
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