hedonic
发表于 2025-3-26 22:37:21
cond, using frequency standards of Cs, or Rb, by optical frequency comb, we can set up a novel technique for realistic realization of length of the SI unit Meter (Primary Standard). By means of stabilizing and characterizing the two different constraints – the carrier offset frequency f. and the rep
Laconic
发表于 2025-3-27 01:41:40
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palette
发表于 2025-3-27 05:31:39
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demote
发表于 2025-3-27 11:40:55
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pacific
发表于 2025-3-27 16:23:12
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