beating oscillator

例句：

1. 1.The new electronic device uses an advanced beating oscillator to improve its performance.
   这款新型电子设备使用了先进的振荡器来提高其性能。
2. 2.The scientist used a beating oscillator to measure the temperature of the liquid.
   科学家使用了一个振荡器来测量液体的温度。
3. 3.The beat of the drum was the only sound in the silent room.
   鼓的敲击声是这个寂静房间中唯一的声音。