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石英晶体频标
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石英晶体频标
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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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tuberculosis of cervical lymph nodes
tuberculosis of chest wall
tuberculosis of female genital organ
tuberculosis of spine
tuberculosis of the intestines
tuberculosis of the knee joint
tuberculosis of urinary system and male reproductive system
Tuberculosis Sanatorium at Paimio
tuberculosis verrucosa cutis
tuberculostearic acid
tuberculous peritonitis
tuberculum
tuber fleeceflower stem
tube rolling schedule
tuber onion seed
tuberose
tuberous begonia
tuberous sclerosis
tube sizing and sinking process
tube structure
tube wall atomization
tube-wall atomization
tube worm
Tubian
tubificid
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