双磁道的英文

• double magnetic track
• dt double track

• 双:    two; twin; both; dual
• 磁道:    magnetic track; track
• 双磁道纠错法:    double error correction scheme; double-error correction scheme
• 双磁:    biax
• 双磁层:    magnetic double layer

例句与用法

1. Film 16 mm , magnetic film perforated along one edge ; location of erasing , recording and reproducing heads for single and twin tracks
   16mm单侧穿孔磁胶片.单双磁道录音用抹头录音磁头