这是通过，用一个非常宽的频率梳的两个部分测量一个已知的精确的原子钟频率，然后比较两者测量的结果来实现的。
This involves taking two measurements from different parts of a very broad comb and comparing the results to precisely known frequencies of an atomic clock.
这是通过，用一个非常宽的频率梳的两个部分测量一个已知的精确的原子钟频率，然后比较两者测量的结果来实现的。
This involves taking two measurements from different parts of a very broad comb and comparing the results to precisely known frequencies of an atomic clock.
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