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IEC 60645-5-2004 Electroacoustics - Audiometric equipment - Part 5 Instruments for the measurement of aural acoustic impedance admittance《电声学.听力测定设备.第5部分 听觉声阻抗 导纳测量用设备》.pdf 66

IEC 60645-5-2004 Electroacoustics - Audiometric equipment - Part 5 Instruments for the measurement of aural acoustic impedance admittance《电声学.听力测定设备.第5部分 听觉声阻抗 导纳测量用设备》.pdfIEC 60645-5-2004 Electroacoustics - Audiometric equipment - Part 5 Instruments for the measurement of aural acoustic impedance admittance《电声学.听力测定设备.第5部分 听觉声阻抗 导纳测量用设备》.pdf

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IEC 60645-3-2007 Electroacoustics - Audiometric equipment - Part 3 Test signals of short duration《电声学.听力测定设备.第3部分 短持续测试信号》.pdf 28

IEC 60645-3-2007 Electroacoustics - Audiometric equipment - Part 3 Test signals of short duration《电声学.听力测定设备.第3部分 短持续测试信号》.pdfIEC 60645-3-2007 Electroacoustics - Audiometric equipment - Part 3 Test signals of short duration《电声学.听力测定设备.第3部分 短持续测试信号》.pdf

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IEC 60401-2-2009 Terms and nomenclature for cores made of magnetically soft ferrites - Part 2 Reference of dimensions《铁氧体软磁芯的术语和命名.第2部分 尺寸基准》.pdf 22

IEC 60401-2-2009 Terms and nomenclature for cores made of magnetically soft ferrites - Part 2 Reference of dimensions《铁氧体软磁芯的术语和命名.第2部分 尺寸基准》.pdfIEC 60401-2-2009 Terms and nomenclature for cores made of magnetically soft ferrites - Part 2 Reference of dimensions《铁氧体软磁芯的术语和命名.第2部分 尺寸基准》.pdf

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IEC 60400-2017 Lampholders for tubular fluorescent lamps and starterholders《管状荧光灯的灯座和启辉器座》.pdf 96

IEC 60400-2017 Lampholders for tubular fluorescent lamps and starterholders《管状荧光灯的灯座和启辉器座》.pdfIEC 60400-2017 Lampholders for tubular fluorescent lamps and starterholders《管状荧光灯的灯座和启辉器座》.pdf

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IEC 60399 Edition 2.1-2008 Barrel thread for lampholders with shade holder ring《带灯罩卡环的灯座的圆筒螺纹》.pdf 22

IEC 60399 Edition 2.1-2008 Barrel thread for lampholders with shade holder ring《带灯罩卡环的灯座的圆筒螺纹》.pdfIEC 60399 Edition 2.1-2008 Barrel thread for lampholders with shade holder ring《带灯罩卡环的灯座的圆筒螺纹》.pdf

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IEC 60398-2015 Installations for electroheating and electromagnetic processing - General performance test methods《电热和电磁加工用装置 通用性能试验方法》.pdf 80

IEC 60398-2015 Installations for electroheating and electromagnetic processing - General performance test methods《电热和电磁加工用装置 通用性能试验方法》.pdfIEC 60398-2015 Installations for electroheating and electromagnetic processing - General performance test methods《电热和电磁加工用装置 通用性能试验方法》.pdf

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IEC 60394-3-2-1988 Varnished fabrics for electrical purposes Part 3 Specifications for individual materials Sheet 2 Glass-fibre based varnished fabrics with epoxy polyurethane sil.pdf 18

IEC 60394-3-2-1988 Varnished fabrics for electrical purposes Part 3 Specifications for individual materials Sheet 2 Glass-fibre based varnished fabrics with epoxy polyurethane sil.pdfIEC 60394-3-2-1988 Varnished fabrics for electrical purposes Part 3 Specifications for individual materials Sheet 2 Glass-fibre based varnished fabrics with epoxy polyurethane sil.pdf

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IEC 60193-1999 Hydraulic turbines storage pumps and pump-turbines - Model acceptance tests《水轮机、蓄能泵和水泵水轮机 模型验收试验》.pdf 578

IEC 60193-1999 Hydraulic turbines storage pumps and pump-turbines - Model acceptance tests《水轮机、蓄能泵和水泵水轮机 模型验收试验》.pdfIEC 60193-1999 Hydraulic turbines storage pumps and pump-turbines - Model acceptance tests《水轮机、蓄能泵和水泵水轮机 模型验收试验》.pdf

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IEC 60191-6-8-2001 Mechanical standardization of semiconductor devices - Part 6-8 General rules for the preparation of outline drawings of surface mounted semiconductor device pack.pdf 26

IEC 60191-6-8-2001 Mechanical standardization of semiconductor devices - Part 6-8 General rules for the preparation of outline drawings of surface mounted semiconductor device pack.pdfIEC 60191-6-8-2001 Mechanical standardization of semiconductor devices - Part 6-8 General rules for the preparation of outline drawings of surface mounted semiconductor device pack.pdf

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IEC 60191-6-6-2001 Mechanical standardization of semiconductor devices - Part 6-6 General rules for the preparation of outline drawings of surface mounted semiconductor device pack.pdf 30

IEC 60191-6-6-2001 Mechanical standardization of semiconductor devices - Part 6-6 General rules for the preparation of outline drawings of surface mounted semiconductor device pack.pdfIEC 60191-6-6-2001 Mechanical standardization of semiconductor devices - Part 6-6 General rules for the preparation of outline drawings of surface mounted semiconductor device pack.pdf

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