The equipment parameters of power system are described in the Frame Knowledge Representation, and a visual and hierarchal clear data structure is constructed.
该系统用框架知识表示法来描述电力系统的设备参数，建构了一个直观的、层次分明的数据结构。
Power network structure knowledge is the base of expert system used in power system. The will of knowledge representation affect the work efficiency and currency of expert system.
电网结构知识是应用于电力系统的专家系统工作的基础，知识表示方法的优劣直接影响专家系统的工作效率及系统的通用性。
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