cesium frequency standard
... caesium frequency standard 铯频标 active frequency standard 主动频率标准 cesium frequency standard 铯频率标准 ...
基于18个网页-相关网页
短语
铯束原子频率标准
Cesium atomic beam frequency standard
;
cesium frequency standards
原级铯射束频率标准
primary cesium beam frequency standard
铯射束原子频率标准
cesium beam atomic frequency standard
铯原子束频率标准
cesium beam frequency standard