sweep oscillator

例句：

1. 1. The sweep oscillator was used to clean the floor.
   扫频振荡器被用来清洁地板。
2. 2. The sweep oscillator was responsible for maintaining the stability of the system.
   扫频振荡器负责维护系统的稳定。
3. 3. The sweep oscillator was used to detect and measure the frequency of the signal.
   扫频振荡器用于检测和测量信号的频率。