Quartz crystal resonators are devices that supply standard time base.
石英晶体谐振器是一种提供基准时基的器件。
The time base was given both by a crystal clock and the broadcast standard signals.
时间标准是由石英钟和广播标准信号提供的。
The time base was given both by a crystal clock and the broadcast standard signals.
时间标准是由石英钟和广播标准信号提供的。
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