A secondary index in a pair of indexes used to locate a particular file record. The higher or mass index would often be considered the coarse index.

用来查找特定文件记录的一对索引中的第二级索引。高一级的或涉及量大的索引通称为粗索引。

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Considering the Angle of locating document resources, existing peer-to-peer resource sharing systems only provide coarse-grained resource location based on file names.

从文档资源定位的角度考察，现有的对等网资源共享系统都仅支持基于文件名的粗粒度资源定位。

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