要使晶体振荡器的输出信号保持原子标准所固有的频率准确度和稳定度，所用压控晶体振荡器必须具有优良的性能。

The performance of VCXO must be excellent so as to maintain the inherent frequency accuracy and stability of the atomic standard.

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要使晶体振荡器的输出信号保持原子标准所固有的频率准确度和稳定度，所用压控晶体振荡器必须具有优良的性能。

The performance of VCXO must be excellent so as to maintain the inherent frequency accuracy and stability of the atomic standard.

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