E-R model is designed and translated into logic model. Knowledge base is realized basing on database.

并通过概念模型设计、逻辑设计、数据表设计，完成了基于数据库的知识库实现。

youdao

E-R model is designed and translated into logic model. Knowledge base is realized basing on database.

并通过概念模型设计、逻辑设计、数据表设计，完成了基于数据库的知识库实现。

youdao