1.
The middle part of an audio frequency.
中声频，中频声波频率的中间部分
2.
audio routing switcher
声频视频程序转换器
3.
sound IF amplifier tube
声频信号中频放大器
4.
audio-frequency amplifier
声频放大器音频放大器
5.
variable-audio-frequency radiosonde
变声频无线电探空仪
6.
audio frequency output level of receiver
接收机声频输出电平
7.
audio-feedback path
声频反馈路径(通路)
8.
pressure frequency response of microphone
传声器声压频率响应
9.
A small loudspeaker designed to reproduce high-pitched sounds in a high-fidelity audio system.
高频扬声器在高保真度的放声系统中用来产生高频声的小扬声器
10.
FM broadcasting--Monophonic
GB4311.1-1984调频广播单声
11.
FM stereo broadcast transmitter
调频立体声广播发射机
12.
FM broadcasting--Stereophonic
GB4311.2-1984调频广播立体声
13.
HF transistorized signal generator
晶体管高频信号发声器
14.
multi-audiotrack video tape recorder
多声道视频磁带录像机
15.
frequency modulation noise level on carrier
载波的调频噪声电平
16.
The acoustics of ultrasonic sound.
超音频声音的音响学
17.
frequency modulating stereo transmitter
立体声调频广播发射机
18.
preferred frequencies for acoustical measurement
声学测量的最佳频率