在重放的过程中可以改变磁带的速度，以使时间基准拉长或缩短。

By varying the tape speed during playback, the time base can be extended or compressed.

youdao

在重放的过程中可以改变磁带的速度，以使时间基准拉长或缩短。

By varying the tape speed during playback, the time base can be extended or compressed.

youdao