“quartz crystal frequency standard”的概念、定义、翻译、参考文献-科学参考

单词	quartz crystal frequency standard
释义	quartz crystal frequency standard Encyclopedia 工学频率标准释 quartz crystal frequency standard石英晶体频标利用石英晶体的压电特性、高Q特性及稳定的物理化学性能，与振荡电路一起组成高稳定的石英晶体振荡器，从而输出较高准确度和稳定度的特定频率信号的频率标准。又称石英晶振频标（简称晶振频标）、石英晶体振荡器（简称晶振）。通常指日老化率在10-10量级或优于此量级，在计量或其他系统作为标准使用的晶振。
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