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现行 IEC 60642:1979/AMD1:1992
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Amendment 1 - Piezoelectric ceramic resonators and resonator units for frequency control and selection - Chapter I: Standard values and conditions - Chapter II: Measuring and test conditions 修改件1.频率控制和选择用压电陶瓷谐振器和谐振器单元.第1章:标准值和条件.第2章:测量和试验条件
发布日期: 1992-09-30
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归口单位: TC 49
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