REST makes retrieving static documents incredibly efficient and scalable because they can be easily cached based on the URI and last-modified date.

REST使静态文档的检索极其高效、可伸缩，这是因为它们可以根据uri和最后修改日期来轻松缓存。

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Both these techniques are illustrated in Listing 7, which restricts the result set to 10 entries, sorted in descending order by their last modified date.

这些技术都演示在清单7中，这里将结果限制为10个条目，按最后修改日期降序排列。

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For example, a contact record may contain a last modified date and the identity of the modifying user (auditing information), and a unique identifier (database or persistence information).

比如，一个联系人记录可能包含一个“最近修改时间”和一个“修改用户的标识”，和一个“唯一标识”(数据库或持久化信息)。

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