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time and frequency synchronization
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time and frequency synchronization
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释
time and frequency synchronization
时间频率同步
通过时刻比对或频率比对将分布在不同地方的钟的时刻值或频率源的频率值调整到一定的准确度或一定的符合度的过程。
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accounting standards
accounting system
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accounts receivable
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accouplement
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accreditation for pharmaceutical laboratory
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accreditation system
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