caesium clock造句
造句与例句
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- Christopher Henn-Collins and Dr Louis Essen, inventor of the caesium clock were presented to him.
- The " Navigational Technology Satellite 2 ", redesigned with caesium clocks, started to go into orbit on June 23, 1977.
- Caesium clocks are the most accurate & commercially produced time and frequency standards, and serve as the primary standard for the definition of the second in SI ( the metric system ).
- In 1971, caesium clocks were used to test Einstein s theory of relativity, and through use of planes, showed that the speed you are moving at affects how quickly time passes ( the faster you move, the more time for you slows ).
- It's difficult to see caesium clock in a sentence. 用caesium clock造句挺难的
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