出典:Wiktionary
master clock (複数形 master clocks)
出典:Wikipedia
出典:『Wikipedia』 (2011/03/16 15:40 UTC 版)
A master clock is a precision clock that provides timing signals to synchronize slave clocks as part of a clock network. The master clock in such installations is controlled by an accurate quartz crystal oscillator, usually referenced to an external frequency standard such as MSF, which is part of a world-wide timekeeping system.
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