... caesium frequency standard 铯频标 active frequency standard 主动频率标准 cesium frequency standard 铯频率标准 ...
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optical pumped cesium frequency standard 光抽运铯束频标
cesium atomic beam frequency standard 铯原子射束的频率标准 ; 铯束原子频率标准
cesium beam frequency standard 铯原子束频率标准 ; 铯束频标
primary cesium beam frequency standard 原级铯射束频率标准
cesium beam atomic frequency standard 铯射束原子频率标准 ; 铯束原子频率标准
This is the basis for the well - known cesium clock, presently the standard of frequency and time.
这就是众所周知的铯原子钟的基础，它是目前的频率和时间基准。
This uncertainty is one of the critical factors governing the accuracy level of the cesium fountain frequency standard.
此项频移误差是决定铯原子喷泉频标准确度总体水平的主要因素之一。
A portable laser system, continually working for very long period, is the key part in realization of an optically pumped cesium beam frequency standard.
长期连续工作的袖珍激光系统是实现实用的光抽运铯束频标的关键。
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