类别中的每个计数器均有该类别定义的每个实例。

Every counter within a category has each instance defined for the category.

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通常，您应该使用预定义的语义类别定义适合您的业务逻辑的角色。

Typically, you should define your own roles that suit your business logic with the predefined semantic categories.

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如果我们将Join Scheme设定为urn： EID，那么条目类别定义如下。

If we had set up our Join Scheme as urn: EID, then we would define the following Categories for our entries.

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