An incremental backup grabs all changes since the last full backup image (sometimes called a level 1 backup).

增量备份捕捉自上一次完全备份以来的所有变化(有时候也称1级备份)。

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You can restore a backup image taken on a 32 bit level system into a 64 bit level, but not the opposite.

可以将32位系统上创建的备份镜像恢复到64位系统，但是反之则不行。

youdao