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ISO 10313-1993 Ambient air determination of the mass concentration of ozone chemiluminescence method《环境空气 臭氧质量浓度的测定 化学发光法》.pdf 12

ISO 10313-1993 Ambient air determination of the mass concentration of ozone chemiluminescence method《环境空气 臭氧质量浓度的测定 化学发光法》.pdfISO 10313-1993 Ambient air determination of the mass concentration of ozone chemiluminescence method《环境空气 臭氧质量浓度的测定 化学发光法》.pdf

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ISO 1031-1974 Coniferous sawn timber Defects Terms and definitions Trilingual edition《针叶树锯材 缺陷 术语和定义 三种语言版》.pdf 32

ISO 1031-1974 Coniferous sawn timber Defects Terms and definitions Trilingual edition《针叶树锯材 缺陷 术语和定义 三种语言版》.pdfISO 1031-1974 Coniferous sawn timber Defects Terms and definitions Trilingual edition《针叶树锯材 缺陷 术语和定义 三种语言版》.pdf

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IEEE N42 31-2003 en Measurement Procedures for Resolution and Efficiency of Wide-Bandgap Semiconductor Detectors of Ionizing Radiation《电离辐射的宽能隙半导体探测器的分辨率和能效用测量规.pdf 41

IEEE N42 31-2003 en Measurement Procedures for Resolution and Efficiency of Wide-Bandgap Semiconductor Detectors of Ionizing Radiation《电离辐射的宽能隙半导体探测器的分辨率和能效用测量规.pdfIEEE N42 31-2003 en Measurement Procedures for Resolution and Efficiency of Wide-Bandgap Semiconductor Detectors of Ionizing Radiation《电离辐射的宽能隙半导体探测器的分辨率和能效用测量规.pdf

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IEEE N42 30-2002 en American National Standard for Performance Specification for Tritium Monitors《氚监测器性能规范的美国国家标准》.pdf 33

IEEE N42 30-2002 en American National Standard for Performance Specification for Tritium Monitors《氚监测器性能规范的美国国家标准》.pdfIEEE N42 30-2002 en American National Standard for Performance Specification for Tritium Monitors《氚监测器性能规范的美国国家标准》.pdf

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IEEE N42 28-2002 en American National Standard for Calibration of Germanium Detectors for In-Situ Gamma-Ray Measurements《现场伽马射线测量用锗探测器的美国国家标准校正》.pdf 44

IEEE N42 28-2002 en American National Standard for Calibration of Germanium Detectors for In-Situ Gamma-Ray Measurements《现场伽马射线测量用锗探测器的美国国家标准校正》.pdfIEEE N42 28-2002 en American National Standard for Calibration of Germanium Detectors for In-Situ Gamma-Ray Measurements《现场伽马射线测量用锗探测器的美国国家标准校正》.pdf

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IEEE N42 27-1999 en American National Standard for Determination of Uniformity of Solid Gamma-Emitting Flood Sources《固态γ放射源不均匀性测定的美国国家标准》.pdf 12

IEEE N42 27-1999 en American National Standard for Determination of Uniformity of Solid Gamma-Emitting Flood Sources《固态γ放射源不均匀性测定的美国国家标准》.pdfIEEE N42 27-1999 en American National Standard for Determination of Uniformity of Solid Gamma-Emitting Flood Sources《固态γ放射源不均匀性测定的美国国家标准》.pdf

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IEEE N42 26-1996 en Radiation Protection Instrumentation - Monitoring Equipment - Personal Warning Devices for X and Gamma Radiations《辐射防护设备 监测设备 X和γ辐射的个人报警装置》.pdf 58

IEEE N42 26-1996 en Radiation Protection Instrumentation - Monitoring Equipment - Personal Warning Devices for X and Gamma Radiations《辐射防护设备 监测设备 X和γ辐射的个人报警装置》.pdfIEEE N42 26-1996 en Radiation Protection Instrumentation - Monitoring Equipment - Personal Warning Devices for X and Gamma Radiations《辐射防护设备 监测设备 X和γ辐射的个人报警装置》.pdf

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IEEE C37 13 1-2006 en Standard for Definite-Purpose Switching Devices for Use in Metal- Enclosed Low-Voltage Power Circuit Breaker Switchgear《附金属壳的低压电力断路器开关装置用专.pdf 28

IEEE C37 13 1-2006 en Standard for Definite-Purpose Switching Devices for Use in Metal- Enclosed Low-Voltage Power Circuit Breaker Switchgear《附金属壳的低压电力断路器开关装置用专.pdfIEEE C37 13 1-2006 en Standard for Definite-Purpose Switching Devices for Use in Metal- Enclosed Low-Voltage Power Circuit Breaker Switchgear《附金属壳的低压电力断路器开关装置用专.pdf

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IEEE C37 123-2016 en Guide for Specifications for High-Voltage Gas-Insulated Substations Rated 52 kV and Above.pdf 60

IEEE C37 123-2016 en Guide for Specifications for High-Voltage Gas-Insulated Substations Rated 52 kV and Above.pdfIEEE C37 123-2016 en Guide for Specifications for High-Voltage Gas-Insulated Substations Rated 52 kV and Above.pdf

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IEEE C37 122 ERTA-2011 en Errata to High Voltage Gas-Insulated Substations Rated Above 52 kV - Correction Sheet《额定值高于52 kV以上的高电压气体绝缘变电站 勘误》.pdf 2

IEEE C37 122 ERTA-2011 en Errata to High Voltage Gas-Insulated Substations Rated Above 52 kV - Correction Sheet《额定值高于52 kV以上的高电压气体绝缘变电站 勘误》.pdfIEEE C37 122 ERTA-2011 en Errata to High Voltage Gas-Insulated Substations Rated Above 52 kV - Correction Sheet《额定值高于52 kV以上的高电压气体绝缘变电站 勘误》.pdf

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