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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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network data examination
network data management protocol
network data management protocol, NDMP
network data model
network data visualizatin
network degree of node
network density
network design
network design algorithm
network development
network diameter
network diaphragm
network dictionary
network differences
network dimensionality
network directory resource collection
network distance
network document
network drama
network dynamics
network eavesdropping
network economy
networked control system
networked control system based on stochastic system model
networked control systems
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