This is the basis for the well - known cesium clock, presently the standard of frequencyandtime.
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。
2
A new tool that can test the clock base frequency error of energy measuring devices and provide GPS standardtime to calibrate real-time clock was introduced in this paper.
介绍了一种用来测量电能计量装置的时钟基频误差，并提供GPS标准时间以校准其实时时钟的新型工具。
3
Atomic frequencyStandard is the frequencyandtime benchmark of space technology and time awarding system, directly determining the quality of satellite communications.