此外，从数据访问中分离业务逻辑可实现数据库独立性，并为各种类型的数据存储提供插件能力。
In addition, separating business logic from data access enables database-independence and provides for plug-ability to various types of data stores.
这些方法中有些是很奇妙的：巨大数据库的可携带性，移动性，快速访问数百万歌曲的能力和自定义列表功能。
Some of those ways are wonderful: Portability of huge libraries, shuffling, quick access to millions of songs, and custom playlists are a few of the upsides.
要增强ACL的可管理能力，必须对实体进行分组，然后为这些组提供对不同共享资源的访问权限。
To make ACL storage manageable, entities are grouped, and these groups are then provided permissions on different Shared resources.
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