“cesium-beam atomic clock”的概念、定义、翻译、参考文献-科学参考

单词	cesium-beam atomic clock
释义	cesium-beam atomic clock [`sē·zē·ǝm ´bēm ǝ`täm·ik `kläk] ^NUCLEONICS An instrument, used as the primary standard of frequency and time, in which a microwave oscillator, which generates radiation in a microwave cavity, is maintained at a frequency such that a hyperfine transition is induced in cesium atoms in a beam passing through the cavity. Also known as cesium-beam atomic oscillator.
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