crystal oscillator

例句：

1. 1.The crystal oscillator in the computer is used to measure the time.
   计算机中的晶体振荡器用于测量时间。
2. 2.The crystal oscillator was responsible for the accurate timing of the clock.
   晶体振荡器负责精确地计时。
3. 3.The crystal oscillator was used as a reference for testing the accuracy of the clock.
   晶体振荡器被用作测试时钟准确性的参考。