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ammonia clock

/əˈməʊniə klɒk/

翻译: 利用氨分子振动作为计时基准的原子钟,曾作为高精度时间标准使用。

1 个条目

phrase

/əˈməʊniə klɒk/C1formalscientific
  • zh利用氨分子振动作为计时基准的原子钟,曾作为高精度时间标准使用。

A type of atomic clock that uses the vibrations of ammonia molecules to measure time with high precision, historically used as a standard for timekeeping.

  1. Atomic timekeeping deviceC2formal

    A type of atomic clock that uses the absorption or emission of microwave radiation by ammonia molecules to measure time with high precision.

    zh氨分子钟

    • The ammonia clock was an early precursor to modern cesium atomic clocks.
    • Researchers used an ammonia clock to test fundamental physics theories.
    • The ammonia clock's accuracy was groundbreaking for its time.