ringing frequency

例句：

1. 1. The device has a ringing frequency of 20 kHz.
   该设备具有20千赫兹的振荡频率。
2. 2. The sound waves are traveling at a ringing frequency of 500 meters per second.
   声波以每秒500米的速度振荡。
3. 3.The ringing frequency is used to measure the distance between two points on a circuit.
   振荡频率用于测量电路上两点之间的距离。