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IEC 60151-15-1967 Measurements of the electrical properties of electronic tubes Part 15 Methods of measurement of spurious and unwanted electrode currents《电子管电性能的测量 第15部分 寄生和不需要的电极电流的测量方法》.pdf 38

IEC 60151-15-1967 Measurements of the electrical properties of electronic tubes Part 15 Methods of measurement of spurious and unwanted electrode currents《电子管电性能的测量 第15部分 寄生和不需要的电极电流的测量方法》.pdfIEC 60151-15-1967 Measurements of the electrical properties of electronic tubes Part 15 Methods of measurement of spurious and unwanted electrode currents《电子管电性能的测量 第15部分 寄生和不需要的电极电流的测量方法》.pdf

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IEC 60151-14-1975 Measurements of the electrical properties of electronic tubes Part 14 Methods of measurement of radar and oscilloscope cathode-ray tubes《电子管电性能的测量 第14部分 雷达和示波阴极射线管的测量方法》.pdf 36

IEC 60151-14-1975 Measurements of the electrical properties of electronic tubes Part 14 Methods of measurement of radar and oscilloscope cathode-ray tubes《电子管电性能的测量 第14部分 雷达和示波阴极射线管的测量方法》.pdfIEC 60151-14-1975 Measurements of the electrical properties of electronic tubes Part 14 Methods of measurement of radar and oscilloscope cathode-ray tubes《电子管电性能的测量 第14部分 雷达和示波阴极射线管的测量方法》.pdf

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IEC 60151-12-1966 Measurements of the electrical properties of electronic tubes Part 12 Methods of measuring electrode resistance transconductance amplification factor conversion .pdf 32

IEC 60151-12-1966 Measurements of the electrical properties of electronic tubes Part 12 Methods of measuring electrode resistance transconductance amplification factor conversion .pdfIEC 60151-12-1966 Measurements of the electrical properties of electronic tubes Part 12 Methods of measuring electrode resistance transconductance amplification factor conversion .pdf

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IEC 60151-11-1966 Measurements of the electrical properties of electronic tubes Part 11 Methods of measurement of radiofrequency output power《电子管电性能的测量 第11部分 射频输出功率的测量方法》.pdf 18

IEC 60151-11-1966 Measurements of the electrical properties of electronic tubes Part 11 Methods of measurement of radiofrequency output power《电子管电性能的测量 第11部分 射频输出功率的测量方法》.pdfIEC 60151-11-1966 Measurements of the electrical properties of electronic tubes Part 11 Methods of measurement of radiofrequency output power《电子管电性能的测量 第11部分 射频输出功率的测量方法》.pdf

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IEC 60151-10-1966 Measurements of the electrical properties of electronic tubes Part 10 Methods of measurement of audio-frequency output power and distortion《电子管电性能的测量 第10部分 音频输出功率和失真的测量方法》.pdf 16

IEC 60151-10-1966 Measurements of the electrical properties of electronic tubes Part 10 Methods of measurement of audio-frequency output power and distortion《电子管电性能的测量 第10部分 音频输出功率和失真的测量方法》.pdfIEC 60151-10-1966 Measurements of the electrical properties of electronic tubes Part 10 Methods of measurement of audio-frequency output power and distortion《电子管电性能的测量 第10部分 音频输出功率和失真的测量方法》.pdf

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IEC 60050-351-2013 International Electrotechnical Vocabulary - Part 351 Control technology《国际电工词汇 第351部分 控制技术》.pdf 476

IEC 60050-351-2013 International Electrotechnical Vocabulary - Part 351 Control technology《国际电工词汇 第351部分 控制技术》.pdfIEC 60050-351-2013 International Electrotechnical Vocabulary - Part 351 Control technology《国际电工词汇 第351部分 控制技术》.pdf

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IEC 60050-321-1986 International Electrotechnical Vocabulary Part 321 Instrument transformers《国际电工词汇 第321部分 互感器》.pdf 54

IEC 60050-321-1986 International Electrotechnical Vocabulary Part 321 Instrument transformers《国际电工词汇 第321部分 互感器》.pdfIEC 60050-321-1986 International Electrotechnical Vocabulary Part 321 Instrument transformers《国际电工词汇 第321部分 互感器》.pdf

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IEC 60050-300-2001 International Electrotechnical Vocabulary - Electrical and electronic measurements and measuring instruments - Part 311 General terms relating to measurements Pa.pdf 256

IEC 60050-300-2001 International Electrotechnical Vocabulary - Electrical and electronic measurements and measuring instruments - Part 311 General terms relating to measurements Pa.pdfIEC 60050-300-2001 International Electrotechnical Vocabulary - Electrical and electronic measurements and measuring instruments - Part 311 General terms relating to measurements Pa.pdf

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IEC 60050-221-1990 International electrotechnical vocabulary chapter 221 magnetic materials and components《国际电工词汇 第221章 磁性材料和元件》.pdf 119

IEC 60050-221-1990 International electrotechnical vocabulary chapter 221 magnetic materials and components《国际电工词汇 第221章 磁性材料和元件》.pdfIEC 60050-221-1990 International electrotechnical vocabulary chapter 221 magnetic materials and components《国际电工词汇 第221章 磁性材料和元件》.pdf

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IEC 60050-221 AMD 3-2007 Amendment 3 - International Electrotechnical Vocabulary - Part 221 Magnetic materials and components《修改件3.国际电工词汇.第221部分 磁性材料和元件 》.pdf 22

IEC 60050-221 AMD 3-2007 Amendment 3 - International Electrotechnical Vocabulary - Part 221 Magnetic materials and components《修改件3.国际电工词汇.第221部分 磁性材料和元件 》.pdfIEC 60050-221 AMD 3-2007 Amendment 3 - International Electrotechnical Vocabulary - Part 221 Magnetic materials and components《修改件3.国际电工词汇.第221部分 磁性材料和元件 》.pdf

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