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一种指明逻辑记录位置的号码,用相对于基地址的差值来表示。
A number that indicates the location of a logical record, expressed as a difference with respect to a base address.
youdao
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一种指明逻辑记录位置的号码,用相对于基地址的差值来表示。
A number that indicates the location of a logical record, expressed as a difference with respect to a base address.
youdao