标准磁盘面 standard reference surface

二极标准磁盘面 secondary standard reference surface

二级标准磁盘面 secondary standard reference surface

双面磁盘 double sided disk ; two-sided diskette

单面软磁盘 single side diskette ; single-s ; single side floppy disc

双面软磁盘 double-sided floppy ; dual floppy disk ; two sided diskette ; two-sided disk

磁盘表面停放技术 ramp loading technology

磁盘表面停放 ramp load

磁盘表面停放技 ramp loading technology