disk commands

Over Bulk-Only transporting, the USB host can read/ write the files on the USB flash disk and MP3 by sending UFI commands.

建立起USB大容量存储设备类的单批量（Bulk-Only）传输，并在此基础上，建立与文件系统的接口，通过发送UFI命令实现了U盘和MP3文件的读/写。

External commands, on the other hand, reside on disk.

另一方面, 外部命令则驻留在磁盘上.

These commands only operate within the system folders of the current Windows installation, removable media, the root folder of any hard disk partition, or the local installation sources.

这些命令只能在以下位置中使用：Windows当前安装的系统文件夹、可移动媒体、任何硬盘分区的根文件夹或本地安装源。

The edit, disk, print and format commands are all listed in the "Help Menu".

编辑、磁盘、印刷和形式的指示都列于辅助手册。