Each annotation type defines a fixed set of names associated with that annotation.
每个注释类型定义了一组与之关联的固定名称。
This product type hierarchy is defined in a metadata structure and has an associated set of database tables and business services.
这种产品类型层次结构使用元数据结构进行定义，并具有一组相关数据库表和业务服务。
A hard type implies that there is an associated database table and set of services for managing that type.
硬类型表示可以使用一个相关的数据库表和服务集合管理该类型。
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