sonic frequency response correction
sonic frequency stress wave method
audio frequency amplifier
声频放大器
音频放大器
声频增幅器
电阻耦合声频放大器
电感耦合声频放大器
变压器耦合声频放大器
音频数据流
carrier frequency amplifier
Intermediate Frequency Amplifier
audio frequency and video frequency processing
correlation in frequency domain and frequency domain
High frequency and low frequency
Low Frequency and Acoustic Frequency
Low Frequency and Medium Frequency Therapy Equipment
theoretical frequency and actual frequency
amplitude of sonic wave
apparent sonic porosity
borehole compensated sonic log
borehole compensated sonic logging
Calcification of sonic arch