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ANSI N42 13-2004 Calibration and Usage of Dose Calibrator Ionization Chambers for the Assay of Radionuclides《放射性核素检验用 剂量校准器 电离室的校准和使用》.pdf 13

ANSI N42 13-2004 Calibration and Usage of Dose Calibrator Ionization Chambers for the Assay of Radionuclides《放射性核素检验用 剂量校准器 电离室的校准和使用》.pdfANSI N42 13-2004 Calibration and Usage of Dose Calibrator Ionization Chambers for the Assay of Radionuclides《放射性核素检验用 剂量校准器 电离室的校准和使用》.pdf

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ANSI N42 12-1994 Calibration and Usage of Thallium-Activated Sodium Iodide Detector Systems for Assay of Radionuclides《铊的校准和使用 放射性核素分析用活性碘化钠探测系统》.pdf 17

ANSI N42 12-1994 Calibration and Usage of Thallium-Activated Sodium Iodide Detector Systems for Assay of Radionuclides《铊的校准和使用 放射性核素分析用活性碘化钠探测系统》.pdfANSI N42 12-1994 Calibration and Usage of Thallium-Activated Sodium Iodide Detector Systems for Assay of Radionuclides《铊的校准和使用 放射性核素分析用活性碘化钠探测系统》.pdf

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ANSI IT4 31-1998(R2006) for Photography (Processing) - Photographic Inertness of Construction Materials- Test Method and Specification《摄影(处理)用美国国家标准 结构材料的感光惰性 试.pdf 15

ANSI IT4 31-1998(R2006) for Photography (Processing) - Photographic Inertness of Construction Materials- Test Method and Specification《摄影(处理)用美国国家标准 结构材料的感光惰性 试.pdfANSI IT4 31-1998(R2006) for Photography (Processing) - Photographic Inertness of Construction Materials- Test Method and Specification《摄影(处理)用美国国家标准 结构材料的感光惰性 试.pdf

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ANSI IT4 230-1982(R2006) for Photography (Chemicals)- Sodium Tetraborate Pentahydrate and Decahydrate 《摄影(化学)用美国国家标准 四硼酸钠、五水化钠和十水化钠》.pdf 3

ANSI IT4 230-1982(R2006) for Photography (Chemicals)- Sodium Tetraborate Pentahydrate and Decahydrate 《摄影(化学)用美国国家标准 四硼酸钠、五水化钠和十水化钠》.pdfANSI IT4 230-1982(R2006) for Photography (Chemicals)- Sodium Tetraborate Pentahydrate and Decahydrate 《摄影(化学)用美国国家标准 四硼酸钠、五水化钠和十水化钠》.pdf

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ANSI AWS C7 2M-2010 Recommended Practices for Laser Beam Welding Cutting and Allied Processes (2nd Edition)《激光束焊接 切割及相关工艺的推荐实施规程》.pdf 144

ANSI AWS C7 2M-2010 Recommended Practices for Laser Beam Welding Cutting and Allied Processes (2nd Edition)《激光束焊接 切割及相关工艺的推荐实施规程》.pdfANSI AWS C7 2M-2010 Recommended Practices for Laser Beam Welding Cutting and Allied Processes (2nd Edition)《激光束焊接 切割及相关工艺的推荐实施规程》.pdf

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ANSI AWS C7 1M C7 1-2013 Recommended Practices for Electron Beam Welding and Allied Processes.pdf 152

ANSI AWS C7 1M C7 1-2013 Recommended Practices for Electron Beam Welding and Allied Processes.pdfANSI AWS C7 1M C7 1-2013 Recommended Practices for Electron Beam Welding and Allied Processes.pdf

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ANSI AWS C6 1-1989 Recommended Practices for Friction Welding (First Edition)《摩擦焊接的推荐实施规程》.pdf 48

ANSI AWS C6 1-1989 Recommended Practices for Friction Welding (First Edition)《摩擦焊接的推荐实施规程》.pdfANSI AWS C6 1-1989 Recommended Practices for Friction Welding (First Edition)《摩擦焊接的推荐实施规程》.pdf

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ANSI AWS C5 6-1989 Recommended Practices for Gas Metal Arc Welding《气体金属电弧焊推荐惯例》.pdf 78

ANSI AWS C5 6-1989 Recommended Practices for Gas Metal Arc Welding《气体金属电弧焊推荐惯例》.pdfANSI AWS C5 6-1989 Recommended Practices for Gas Metal Arc Welding《气体金属电弧焊推荐惯例》.pdf

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ANSI AWS C5 10 C5 10M-2003 Recommended Practices for Shielding Gases for Welding and Cutting.pdf 65

ANSI AWS C5 10 C5 10M-2003 Recommended Practices for Shielding Gases for Welding and Cutting.pdfANSI AWS C5 10 C5 10M-2003 Recommended Practices for Shielding Gases for Welding and Cutting.pdf

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IEC 62631-3-1-2016 Dielectric and resistive properties of solid insulating materials - Part 3-1 Determination of resistive properties (DC methods) - Volume resi.pdf 30

IEC 62631-3-1-2016 Dielectric and resistive properties of solid insulating materials - Part 3-1 Determination of resistive properties (DC methods) - Volume resi.pdfIEC 62631-3-1-2016 Dielectric and resistive properties of solid insulating materials - Part 3-1 Determination of resistive properties (DC methods) - Volume resi.pdf

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