1.
image frequency
像频;镜频;镜频;镜像频率;镜像频率;帧频
2.
video frequency/IF/RF pre-correction
视频、中频、射频预校正
3.
video auto-channel measuring apparatus
视频自动频道测试仪
4.
center frequency
中心频率未调制频率
5.
VHF television IF strip
甚高频电视中频部分
6.
We have had a lot of thunder this summer.
今年夏天频频打雷。
7.
She swayed her head from side to side with worry.
她忧心忡忡地频频摇头。
8.
They've been dating for a long time.
他们一直频频约会.
9.
He waved goodbye to us again and again.
他向我们频频挥手告别。
10.
frequency theory of hearing
听觉频率论 听觉频率论
11.
UHF resonance frequency meter
超高频谐振式频率计
12.
audio routing switcher
声频视频程序转换器
13.
sound IF amplifier tube
声频信号中频放大器
14.
audio-frequency amplifier
声频放大器音频放大器
15.
vertical - rate parabolic(al)
场频[帧频]抛物波(的)
16.
bandwidth of one voice channel
一个语音频道的频宽
17.
VHF and UHF direction finder
甚高频与超高频测向器
18.
Intermediate frequency amplifier center frequency
中频放大器的中心频率