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Amazon.com: La Crosse Technology 513-1417H-AL-INT Atomic Clock with Temperature & Humidity, 11.10" L x 1.14" W x 6.61" H, Grey/Black : Home & Kitchen
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Accurate mass and retention time extracted ion current (upper panel)... | Download Scientific Diagram
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Atomic clock: new design will be only less than a tenth of a second out after 14 BILLION years | Daily Mail Online
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