A collection of contiguous records recorded as a unit.Blocks are separated by interblock gaps and each block may contain one or more records.
作为一单位来录的相连录的集合。各块由块间间隙,每块可以含一或录。
A collection of contiguous records recorded as a unit.Blocks are separated by interblock gaps and each block may contain one or more records.
作为一单位来录的相连录的集合。各块由块间间隙,每块可以含一或录。
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