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
单位来记录的相连记录的集合。各块由块间间隙分开，而每块可以
含或多记录。
A collection of contiguous records recorded as a unit.Blocks are separated by interblock gaps and each block may contain one or more records.
作单位来记录的相连记录的集合。各块由块间间隙分开，而每块可以含或多记录。
声明：以上例句、词性分类均由互联网资源自动
，
分未经过人工审核，其表达内容亦不代表本软件的观点；若发现问题，欢迎向我们指正。
