The quartz crystal does not vibrate at certain frequency until the voltage is applied.

直到电压加上去以后，石英晶体才会以某一频率振荡。

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Quartz resonance force sensor is a digital sensor with frequency signal as its output form.

石英谐振式力传感器是一种输出为频率信号的数字式传感器。

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Quartz crystal oscillator is one of the most stability frequency references.

石英晶体振荡器是一种非常重要的频率源。

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Quartz watches use very high-frequency oscillations of a crystal, which can be tuned with extreme precision to produce regular signals.

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