固定频率源可以在在通讯系统和雷达系统中作为本机振荡器，也可以作为数字电路的基准时钟信号，因此得到了广泛的应用。
Single frequency source is usually used as local oscillator in communication system and radar system, also as a reference clock in digital circuits, so it is a extensive-applied technique.
该晶体振荡器的时钟可用于微控制器的时钟。
The clock of the crystal oscillator can be used for clocking the microcontroller.
在这种情况下，晶体振荡器就不能为设备提供稳定的时钟频率，导致设备工作异常。
In this case, the crystal oscillator can not provide a stable clock frequency, which results in the abnormality of the device.
这些持续不断的寄存器由电池供电，并接收来自晶体振荡器计时的时钟信号。
These persistent registers are powered by a battery and receive a timing clock signal from a crystal oscillator.
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.
高精度的时钟源是由74HC04构成的晶体振荡器；
The precise clock source is crystal oscillator made of 74HC04;
高精度的时钟源是由74HC04构成的晶体振荡器；
The precise clock source is crystal oscillator made of 74HC04;
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