playbackn.回放；重放装置playback module放音模块playback option重放选项playback window回放窗口playback signal[计] 读出信号, 再生信号playback attack反演攻击playback buffer读出缓冲, 回放缓冲playback person录影机播放员playback device重视装置playback control重放控制playback circuit读出电路,取信号电路

1. On dictation equipment, a device for accurate alignment of playback head, or combined head, to the track on the recording medium.
   录音设备上的一种装置，它能精确地把重放磁头或组合磁头调准到记录介质的磁道上。