您要查找的是不是：
- T频 power frequency
- 频数 frequence
- 主频 dominant frequency
- 倍频 frequency doubling
- 载频 carrier frequency
- 分频 frequency demultiplication
- 分频器 frequency demultiplier
- 频点 frequency point
- 频发 take place frequently
- 频闪 stroboscopic
- 扩频 spread spectrum
- 导频 pilot frequency
- 双频 double frequency
- 混频 mixing
- 扫频 frequency sweep
- 跳频 frequency hopping
- 频响 frequency response
- 频偏 frequency swing
- 场频 field repetition rate
- 扩频通信 spread spectrum communication
