The last fragment has a non-zero Fragment Offset field, differentiating it from an unfragmented packet.

最后一个片段有一个非零的片段偏移字段，将它与未碎片化的包区分开。

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The application must know the order and type of each field since it must calculate its offset in the record.

应用程序必须知道每个字段的次序和类型，因为它必须计算该字段在记录中的偏移量。

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To access the third field, you would specify register X as the base pointer and 12 as the offset.

要访问第三个域，我们需要指定寄存器x作为指针，12作为偏移量。

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Offset is now used routinely by MI6 officers in the field.

BBC: Spy tactics revealed by book

Porter, the Big East Player of the Year, made all 11 of his free throws most of them in the final minutes to offset a 3-for-9 performance from the field.

WSJ: No. 5 Georgetown pulls away from Cincy at Big East