crossover frequency

例句：

1. 1.The new device has a crossover frequency of 200 MHz.
   这款新设备的频率为200 MHz。
2. 2.The signal is at its peak and will have a crossover frequency of 500 MHz.
   信号正处于峰值，其交叉频率为500 MHz。
3. 3. The engineer used a special filter to achieve a crossover frequency of 10 kHz.
   工程师使用了一种特殊的滤波器来实现10 kHz的交叉频率。