The specialized content model should always identify elements through the element entity rather than directly by name.

专门化内容模型应该总是通过元素实体而不是直接通过名称来标识元素。

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The content model should allow for the possibility that the element entity might expand to a list.

内容模型应该允许元素实体可以扩展成列表的可能性。

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For each CompositeData, an entity model element is also created in order to capture conceptual entity-relationship models.

为了捕获概念性的实体-关系模型，为每一个复合数据建立一个关系模型元素。

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