Double-Sided Disk 双边磁盘 ; [计] 双面磁盘 ; 双面磁碟

double sided floppy disk 双面软碟 ; 双面软盘

double sided quad density disk 双面四倍密度磁碟

double sided high density disk 双面高密度磁碟 ; 双面高密度磁盘

single-sided double-density floppy disk drive 单面双密度软磁盘机

two-sided double-density floppy disk drive 双面双密度软磁盘机