中频: intermediate frequency; IF; ...放大: amplify; magnify; boost; enl ...级: level; rank; grade伴音中频放大级: sound intermediate frequency stage图像中频放大级: picture if stage低频放大级: low-frequency amplification stage视频放大级: video stage中频放大: ifa; intermediate frequency amplification中频放大器: if amplifier; intermediate amplifier; intermediate frequency amplifier; intermediate-frequency amplifier主中频放大器: main if amplifier; main intermediate frequency amplifier; main intermediate-frequency amplifier彩色视频放大级: colour-video stage单调谐中频放大器: single-tuned intermediate frequency amplifier对数中频放大器: logarithmic intermediate frequency amplifier宽带中频放大器: broad band intermediate frequency amplifier前显中频放大器: pre if amplifier前置中频放大器: intermediate frequency preamplifier; pre-if amplifier; pre-intermediate frequency amplifier双调谐中频放大器: double-tuned intermediate frequency amplifier图像中频放大器: image if amplifier; image intermediate frequency amplifier; picture if amplifier; vision if amplifier限幅式中频放大器: limiting intermediate frequency amplifier限幅中频放大器: if limiting amplifier线性-对数中频放大器: linear-logarithmic intermediate frequency中频放大器增益: intermediate frequency amplifier gain参差调谐中频放大器: stagger-tuned intermediate frequency amplifier参差调谐中频放大组: stagger tuned intermediate frequency strip多节滤波器中频放大电路: multi-section filter if amplifier circuit; multi-sectionfilterifamplifiercircuit