石英晶体振荡器是一种非常重要的频率源。
Quartz crystal oscillator is one of the most stability frequency references.
在上海天文台BPV标频和时间信号的发播工作中，使用了高精度石英晶体振荡器。
High precision quartz oscillators were used for the transmission of BPV standard frequency and time signals at Shanghai Observatory.
电子时钟使用了石英晶体振荡器，较之于传统机械钟，具有走时更加准确，稳定性更加出色，使用十分方便，不需要经常调试。
Electronic clock used quartz oscillators, compared with the traditional mechanical clock, with more accurate, stability when more outstanding, is so easy to use, does not require constant debugging.
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