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IEC TS 62306-2006 Ultrasonics - Field characterisation - Test objects for determination temperature elevation in diagnostic ultrasonic fields《超声波学.野外特性.在诊断超声波场内测定温度上升的试验目标》.pdf 84

IEC TS 62306-2006 Ultrasonics - Field characterisation - Test objects for determination temperature elevation in diagnostic ultrasonic fields《超声波学.野外特性.在诊断超声波场内测定温度上升的试验目标》.pdfIEC TS 62306-2006 Ultrasonics - Field characterisation - Test objects for determination temperature elevation in diagnostic ultrasonic fields《超声波学.野外特性.在诊断超声波场内测定温度上升的试验目标》.pdf

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IEC TR 60664-2-1 CORR 1-2011 Insulation coordination for equipment within low-voltage systems - Part 2-1 Application guide - Explanation of application of the IEC 60664 series dime.pdf 3

IEC TR 60664-2-1 CORR 1-2011 Insulation coordination for equipment within low-voltage systems - Part 2-1 Application guide - Explanation of application of the IEC 60664 series dime.pdfIEC TR 60664-2-1 CORR 1-2011 Insulation coordination for equipment within low-voltage systems - Part 2-1 Application guide - Explanation of application of the IEC 60664 series dime.pdf

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IEC TR 60657-1979 Non-ionizing radiation hazards in the frequency range from 1O MHz to 300 000 MHz《频率范围为10MHz-300 000MHz的非电离的辐射危险》.pdf 24

IEC TR 60657-1979 Non-ionizing radiation hazards in the frequency range from 1O MHz to 300 000 MHz《频率范围为10MHz-300 000MHz的非电离的辐射危险》.pdfIEC TR 60657-1979 Non-ionizing radiation hazards in the frequency range from 1O MHz to 300 000 MHz《频率范围为10MHz-300 000MHz的非电离的辐射危险》.pdf

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IEC TR 60649-2007 Calculation of maximum external diameter of cables for indoor installations《户内装置用电缆最大外径的计算》.pdf 12

IEC TR 60649-2007 Calculation of maximum external diameter of cables for indoor installations《户内装置用电缆最大外径的计算》.pdfIEC TR 60649-2007 Calculation of maximum external diameter of cables for indoor installations《户内装置用电缆最大外径的计算》.pdf

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IEC TR 60648-1979 Method of test for coefficients of friction of plastic film and sheeting for use as electrical insulation《电气绝缘用塑料薄膜和片材摩擦系数的测试方法》.pdf 21

IEC TR 60648-1979 Method of test for coefficients of friction of plastic film and sheeting for use as electrical insulation《电气绝缘用塑料薄膜和片材摩擦系数的测试方法》.pdfIEC TR 60648-1979 Method of test for coefficients of friction of plastic film and sheeting for use as electrical insulation《电气绝缘用塑料薄膜和片材摩擦系数的测试方法》.pdf

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IEC TR 60638-1979 Criteria for assessing and coding of the commutation of rotating electrical machines for traction《牵引用旋转电机换向的评定和确定等级准则》.pdf 36

IEC TR 60638-1979 Criteria for assessing and coding of the commutation of rotating electrical machines for traction《牵引用旋转电机换向的评定和确定等级准则》.pdfIEC TR 60638-1979 Criteria for assessing and coding of the commutation of rotating electrical machines for traction《牵引用旋转电机换向的评定和确定等级准则》.pdf

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IEC 62497-2-2010 Railway applications - Insulation coordination - Part 2 Overvoltages and related protection《轨道交通.绝缘配合.第2部分 过电压及相关保护》.pdf 28

IEC 62497-2-2010 Railway applications - Insulation coordination - Part 2 Overvoltages and related protection《轨道交通.绝缘配合.第2部分 过电压及相关保护》.pdfIEC 62497-2-2010 Railway applications - Insulation coordination - Part 2 Overvoltages and related protection《轨道交通.绝缘配合.第2部分 过电压及相关保护》.pdf

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IEC 62496-4-2011 Optical circuit boards - Part 4 Interface standards - General and guidance《光学电路板.第4部分 接口标准.一般和指南》.pdf 64

IEC 62496-4-2011 Optical circuit boards - Part 4 Interface standards - General and guidance《光学电路板.第4部分 接口标准.一般和指南》.pdfIEC 62496-4-2011 Optical circuit boards - Part 4 Interface standards - General and guidance《光学电路板.第4部分 接口标准.一般和指南》.pdf

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IEC 62496-3-2011 Optical circuit boards - Part 3 Performance standards - General and guidance《光学电路板.第3部分 性能标准.总则和指南》.pdf 26

IEC 62496-3-2011 Optical circuit boards - Part 3 Performance standards - General and guidance《光学电路板.第3部分 性能标准.总则和指南》.pdfIEC 62496-3-2011 Optical circuit boards - Part 3 Performance standards - General and guidance《光学电路板.第3部分 性能标准.总则和指南》.pdf

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IEC 62496-3-1-2009 Optical circuit boards - Part 3-1 Performance standard - Flexible optical circuit boards using unconnectorized optical glass fibres《光学电路板.第3-1部分 性能标准.利用未连接光学玻璃纤维的柔性光学电路板》.pdf 32

IEC 62496-3-1-2009 Optical circuit boards - Part 3-1 Performance standard - Flexible optical circuit boards using unconnectorized optical glass fibres《光学电路板.第3-1部分 性能标准.利用未连接光学玻璃纤维的柔性光学电路板》.pdfIEC 62496-3-1-2009 Optical circuit boards - Part 3-1 Performance standard - Flexible optical circuit boards using unconnectorized optical glass fibres《光学电路板.第3-1部分 性能标准.利用未连接光学玻璃纤维的柔性光学电路板》.pdf

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