多频振荡器

例句：

1. 1. The device is used to generatesignals with multiple frequencies.
   这个设备用于产生具有多个频率的信号。
2. 2. In the field ofradio engineering, multi-frequency oscillators are essential for transmitting andreceiving signals.
   在无线电工程领域，多频振荡器对于发送和接收信号至关重要。
3. 3. The engineer carefully tuned the multi-frequency oscillator to ensure optimal performance.
   工程师仔细调校了多频振荡器，以确保最佳性能。