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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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absolutely irreducible variety
absolutely limitable sequence
absolutely majorized subset
absolutely minimal
absolutely minimal manifold
absolutely minimal model
absolutely monotone
absolutely monotone function
absolutely monotone sequence
absolutely monotonic
absolutely monotonic function
absolutely monotonic sequence
absolutely normal
absolutely normal number
absolutely normal variety
absolutely open formula
absolutely optimal strategy
absolutely prime ideal
absolutely quantifier-free formula
absolutely semi-additive function
absolutely semi simple
absolutely semi simple algebra
absolutely semi simple representation
absolutely simple
absolutely simple algebra
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更新时间:2025/3/15 20:59:25