The plan9 image is an ISO format file that can be interpreted using the ISO 9660 format (as an emulation of a CD-ROM drive, which you'll see shortly).

Plan9 映像是可以使用 ISO 9660 格式解译的 ISO 格式文件（如同 CD-ROM 驱动器仿真，很快会讲到）。

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When reading data from a drive this emulation will go unnoticed.

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