Cesium was already a popular element for atomic clock research, and by 1968, some cesium clocks were even commercially available.
铯已经是原子钟研究的热门元素， 到 1968 年，一些铯钟甚至可以商用。
| 单词 | Cesium clock |
| 释义 |
Cesium clock
原声例句
TED-Ed（视频版） Cesium was already a popular element for atomic clock research, and by 1968, some cesium clocks were even commercially available. 铯已经是原子钟研究的热门元素， 到 1968 年，一些铯钟甚至可以商用。
英语百科
Caesium standard（重定向自Cesium clock）
A caesium standard or caesium atomic clock is a primary frequency standard in which electronic transitions between the two hyperfine ground states of caesium-133 atoms are used to control the output frequency. The first caesium clock was built by Louis Essen in 1955 at the National Physical Laboratory in the UK. |
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