共: common; joint; mutual; gener ...频: frequent系统: system倍频系统: frequency doubling system调频系统: frequency modulation system; frequency-modulated system扩频系统: band spread system拍频系统: beat-frequency system全导频系统: all pilot system射频系统: radio frequency system; radio-frequency system声频系统: audio system; audion system视频系统: y/c双混频系统: double mixer system稳频系统: frequency stabilizing system选频系统: frequency selective system移频系统: frequency shift system; fs system音频系统: voice frequency system载频系统: carrier frequency system窄移频系统: narrow shift system保密倒频系统: privacy inverter system被动射频系统: passive rfid system标准导频系统: standard pilot tone system多迹音频系统: pcm辅助视频系统: avs aided video system个人视频系统: pvs personal video system公共视频系统: open video system
