它提供了描述相关资源以及这些资源之间关系的机制。
It provides mechanisms to describe groups of related resources and the relationships between those resources.
此外，还可以用它查找与XML描述器的位置相关的资源。
It can also be used to locate a resource relative to the location of the XML descriptor.
当你的应用程序需要添加内置购买产品时，你或许想要引用这些额外的苹果资源，它们描述了相关的业务，开发指南和需求。
Getting Started with In-App Purchase on iOS and OS X provides an overview of In-App Purchase marketing strategies and business requirements.
资源管理子系统会根据资源的描述，属性以及相关知识，为请求选择合适的资源。
The resource manager will then process the request and choose the approiate resource according to the description, attributes and relevant knowledge representation stored in the database.
该系统目前已经为6000余个JAR包资源收集、整理了相关的描述和评论信息。
It has collected and organized description and user comment information for more than 6000 JAR packages.
该系统目前已经为6000余个JAR包资源收集、整理了相关的描述和评论信息。
It has collected and organized description and user comment information for more than 6000 JAR packages.
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