“atomic-beam frequency standard”的概念、定义、翻译、参考文献-科学参考

单词	atomic-beam frequency standard
释义	atomic-beam frequency standard [ǝ`täm·ik ´bēm `frē·kwǝn·sē ´stan·dǝrd] ^PHYSICS A source of precisely timed signals which are derived from an atomic-beam resonance, such as a cesium-beam cell or a hydrogen maser.
随便看	international control frequency bands international control station International Critical Tables international date line international ellipsoid of reference international fixed public radio communications service International Geophysical Year international gravity formula international henry International Ice Patrol international index numbers international Morse code international nautical mile international ohm International Polar Year international practical temperature scale International Quiet Sun Year international radio silence international rules of the road international signal code international spheroid international standard annealed copper international synoptic code international system of electrical units International System of Units

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