Category:Ammonia maser clock
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Media in category "Ammonia maser clock"
The following 5 files are in this category, out of 5 total.
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Ammonia maser atomic clock NIST.jpg 700 × 844; 66 KB
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Atomic Clock005.jpg 4,641 × 5,801; 15.01 MB
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Atomic Clock007.jpg 4,867 × 5,907; 23.82 MB
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Atomic Clock011.jpg 4,882 × 6,162; 26.25 MB
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Atomic Clock018.jpg 4,746 × 5,982; 18.13 MB