倍频: frequency doubling; frequenc ...通道: thoroughfare; passageway; pa ...低频通道: low channel; low frequency channel高频通道: high frequency channel射频通道: radio-frequency channel声频通道: af channdl; audio channel; voice-grade channel视频通道: video channel; vision channel音频通道: audio path; voice frequency channel传输声频通道: transmit audio path接收声频通道: receive audio path视频通道带宽: video channel bandwidth视频通道输出: video channel output图像中频通道: picture if channel低频通道, 低频信道: low channel分频通道放大器: frequency shared channel amplifier; frequency-shared channel amplifier伴音信号复用视频通道: multiplexing sound on vision电视视频通道测试方法: methods of measurement of television video channel接收机射频通道带宽: receiver channel rf bandwidth倍频: frequency doubling; frequency multiplication; shg (second harmonic generation) (获得频率为原振荡频率整数倍的另一振荡的方法)广播声频通道技术指标测量方法: technical specification measuring method of broadcasting audio channel倍频程；倍频带: octave band倍频，双频: double frequency倍频程: actave; frequency octave; one-third octave band倍频带: octave band; octave frequency band倍频的: frequency-doubled
