查询词典 threshold frequency

ultra-high frequency converter：超高频变频器

ultra-high frequency cathode ray tube 超高频阴极射线管 | ultra-high frequency converter 超高频变频器 | ultra-high frequency correlator 超高频相关器

ultra-high frequency jammer：超高频干扰器

ultra-high frequency generator 超高频发生器 | ultra-high frequency jammer 超高频干扰器 | ultra-high frequency nuclear magnetic resonance spectrometer 超高频核磁共振波谱仪

ultrahigh frequency converter：特高频变频器

ultrahigh frequency cathode ray tube 特高频电子束管 | ultrahigh frequency converter 特高频变频器 | ultrahigh frequency superconducting magnetometer 超高频超导磁强计

ultrahigh frequency translator：特高频差转机

ultrahigh frequency tetrode 超高频四极管 | ultrahigh frequency translator 特高频差转机 | ultrahigh frequency transmitter 特高频发射机

frequency maximum utilizable：最高可用频率

frequency mark 频率标志 | frequency maximum utilizable 最高可用频率 | frequency measurement 频率测量

frequency variation method：变频法

frequency tripler 三倍频器 | frequency variation method 变频法 | frequency window function 频率窗函数

very high frequency direction-finding：甚高频测向

very high frequency direction finder 甚高频测向仪 | very high frequency direction finding 甚高频测向 | very high frequency direction-finding 甚高频测向

Very High Frequency Communication：甚高频通信

very high frequency aural omnirange 甚高频可听式全方位无线电信标 | Very High Frequency Communication 甚高频通信 | very high frequency direction finder 甚高频测向仪

very high frequency transmitter：甚高频发射机

very high frequency signal generator 甚高频信号发生器 | very high frequency transmitter 甚高频发射机 | very high frequency vacuum tube voltmeter 甚高频电子管伏特表

very high frequency jammer：甚高频人为干扰发射机

very high frequency circuit 甚高频电路 | very high frequency jammer 甚高频人为干扰发射机 | very high frequency omnidirectional range 甚高频全向无线电指向标

the bird of wonder：凤凰;长生鸟

the bird of peace鸽子 | the bird of prey 猛禽 | the bird of wonder凤凰;长生鸟

flange rail：平底轨条

"凸缘皮带轮","flange pulley" | "平底轨条","flange rail" | "凸缘肋","flange rib"