各盘片上在无需移动磁头的前提下即可读取的磁道的集合称为柱面。
The collection of tracks on the various platters that can be read without moving the head is called a cylinder.
记录在直接存取盘卷上的地址，表明相对于盘卷始址的一个磁道地址。
An address written on a direct access volume, denoting a track's address relative to the beginning of the volume.
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。
On dictation equipment, a device for accurate alignment of playback head, or combined head, to the track on the recording medium.
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