record changer

例句：

1. 1. The record changer is used to convert audio signals into digital formats.
   录音机用于将音频信号转换为数字格式。
2. 2. The camera records the scene in high definition for future analysis.
   摄像机以高清画质记录场景，以便未来分析。
3. 3. The video recorder captures every moment of the event, which will be reviewed later.
   视频记录仪捕捉了事件的每一个瞬间，稍后会进行回顾。