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。
2
Considering the Angle of locating document resources, existing peer-to-peer resource sharing systems only provide coarse-grained resource location based on file names.