?双面软盘

...双面软盘 double face flo y disk; double face floppy disk; double side flo y disk; double side floppy disk; double sided floppy disk; double-sided diskette; dual floppy; dual-sided diskette; tow-sided flexible disk; two-sided flexible disk 单面软磁盘 single side diskette; single side floppy disc; single-sided diskette; single-sided floppy disk ..