单词	衍生性循环
释义	衍生性循环derivative circulation
随便看	frequency scan radar frequency-scan radar frequency selecting connector frequency selection frequency selective frequency-selective frequency selective amplifier frequency-selective amplifier frequency selective channel frequency selective circuits frequency-selective device frequency-selective element frequency selective fading frequency-selective fading frequency selective integrated circuit frequency selective surface frequency selective voltmeter frequency selectivity frequency-sensitive frequency sensitive detector frequency-sensitive device frequency sensitive relay frequency sensitive rheostat frequency-sensitive starting frequency sensitivity