“playback head”可以造什么句，playback head造句

"On dictation equipment, a device for accurate alignment of playback head, or combined head, to the track on the recording medium."

On dictating equipment, the process of making reproducing a recording by means of a playback head or a combined head.

Structures of permalloy . . . form input / output tracks and storage loops(Aviation Week Space Technology)The record and playback heads . . . are made of hardened permalloy(Stereo Review)They are hard, strong . . . permalloys(High Technology)