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单词
atomic clock
释义
atomic clock
noun
:
a precision clock that depends for its operation on an electrical oscillator (as a quartz crystal) regulated by the natural vibration frequencies of an atomic system (as a beam of cesium atoms or of ammonia molecules)
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unm
unmade
unmade
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unmagical
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unmagnetized
unmagnified
unmaidenly
unmailable
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unmake
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更新时间:2026/6/18 9:24:39