Atomic clock
volume
British pronunciation/ɐtˈɒmɪk klˈɒk/
American pronunciation/ɐtˈɑːmɪk klˈɑːk/

"atomic clock" 的定义和意义

Atomic clock
01

a timepiece that derives its time scale from the vibration of atoms or molecules

example
例子
examples
Pendulum clocks were widely used before the invention of quartz and atomic clocks.
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