请注意，当把一个持久性存储单元附加给一个活动实例时，应用程序可以像本地或临时性存储一样访问实例的数据。

Please note that when a persistent storage unit is attached to an active instance, its data is accessible to applications just like local or ephemeral storage.

youdao

注意，这一开发场景需要使用Hibernate将已有持久性数据表示成基于对象的视图。

Note that this development scenario involves using Hibernate to present an object-based view of existing persistent data.

youdao

请注意，存在两个不同的持久性单元。

Notice there are two different persistence units.

youdao