Although the diagram does not convey entity container information, the conceptual model must define an entity container.
虽然该图没有传达实体容器信息,但概念模型必须定义一个实体容器。
Although the diagram does not convey entity container information, the conceptual model must define an entity container.
虽然该图没有传达实体容器信息,但概念模型必须定义一个实体容器。
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