caesium clock

短语

铯钟

词形变化

caesium clocks 复数 caesium clocks

别名

cesium clock

释义与例句

n.
  1. 1.

    A type of highly accurate atomic clock that is regulated by a resonance frequency of caesium atoms (the same frequency, 9,192,631,770 Hz, on which the precise scientific definition of the second is based).

词汇关系

名词

上位词 1