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1·For example, we have Quartz crystal clocks and watches accurate to within one minute a year.

例如，我们使用的每年误差不超过1分钟的石英水晶钟表和手表。

2·Quartz crystal is perfectly crystallized.

石英晶体是完美的结晶。

3·Watches with quartz crystal movements never have to be wound.

装有石英晶体机蕊的手表毋需上发条。

4·The quartz crystal didn't vibrate until the voltage WAS applied.

直到电压加上去以后石英晶体才开始振荡。

5·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。

6·Today, quartz crystal clocks are generally used on the seismograph stations.

目前，地震台站一般采用石英晶体钟。

7·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。

8·Quartz crystal microbalance (QCM) is widely used in chemistry, physics and biology.

石英微天平(QCM)被广泛应用于化学、物理和生物领域。

9·The micro quartz crystal tuning fork gyroscope is a new type of vibratory gyroscope.

石英音叉陀螺是一种新型的振动陀螺。

10·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。