SUBST Associates a path with a drive letter.

将驱动器名与路径关联.

The system tried to SUBST a drive to a directory on a joined drive.

系统试图替代驱动器为合并驱动器上的目录.

A JOIN or SUBST command cannot be used for a drive that contains previously joined drives.

包含先前加入驱动器的驱动器无法使用JOIN或subst命令.