This text introduced the basic concept and modeling process of a semantic object model, and compared it with E-R model.
简要介绍了语义对象模型的几个基本概念，并与E - R模型作比较。
This text introduced the basic concept and modeling process of a semantic object model, and compared it with E-R model.
简要介绍了语义对象模型的几个基本概念，并与E - R模型作比较。
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