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IEC 61847-1998 Ultrasonics - Surgical systems - Measurement and declaration of the basic output characteristics《超声学 外科装置 基本输出特性的测量和标示》.pdf 38

IEC 61847-1998 Ultrasonics - Surgical systems - Measurement and declaration of the basic output characteristics《超声学 外科装置 基本输出特性的测量和标示》.pdfIEC 61847-1998 Ultrasonics - Surgical systems - Measurement and declaration of the basic output characteristics《超声学 外科装置 基本输出特性的测量和标示》.pdf

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IEC 61846-1998 Ultrasonics - Pressure pulse lithotripters - Characteristics of fields《超音波学.压力脉冲碎石器.声场特性》.pdf 34

IEC 61846-1998 Ultrasonics - Pressure pulse lithotripters - Characteristics of fields《超音波学.压力脉冲碎石器.声场特性》.pdfIEC 61846-1998 Ultrasonics - Pressure pulse lithotripters - Characteristics of fields《超音波学.压力脉冲碎石器.声场特性》.pdf

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IEC 61842-2002 Microphones and earphones for speech communications《语音通信用传声器和耳机》.pdf 34

IEC 61842-2002 Microphones and earphones for speech communications《语音通信用传声器和耳机》.pdfIEC 61842-2002 Microphones and earphones for speech communications《语音通信用传声器和耳机》.pdf

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IEC 61839-2000 Nuclear power plants - Design of control rooms - Functional analysis and assignment《核电厂 控制室的设计 功能分析和测定》.pdf 48

IEC 61839-2000 Nuclear power plants - Design of control rooms - Functional analysis and assignment《核电厂 控制室的设计 功能分析和测定》.pdfIEC 61839-2000 Nuclear power plants - Design of control rooms - Functional analysis and assignment《核电厂 控制室的设计 功能分析和测定》.pdf

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IEC 61835-1998 Helical-scan digital component video cassette recording system using 12 65 mm (0 5 in) magnetic tape - Format D-5《使用12.65mm(0.5 in)磁带的螺旋扫描数字视频盒式录音系统 D-5格式》.pdf 304

IEC 61835-1998 Helical-scan digital component video cassette recording system using 12 65 mm (0 5 in) magnetic tape - Format D-5《使用12.65mm(0.5 in)磁带的螺旋扫描数字视频盒式录音系统 D-5格式》.pdfIEC 61835-1998 Helical-scan digital component video cassette recording system using 12 65 mm (0 5 in) magnetic tape - Format D-5《使用12.65mm(0.5 in)磁带的螺旋扫描数字视频盒式录音系统 D-5格式》.pdf

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IEC 61442-2005 Test methods for accessories for power cables with rated voltages from 6 kV (Um = 7 2 kV) up to 30 kV (Um = 36 kV)《额定电压6-30kV(Um=7.2-36kV)的电力电缆附件的试验方法》.pdf 70

IEC 61442-2005 Test methods for accessories for power cables with rated voltages from 6 kV (Um = 7 2 kV) up to 30 kV (Um = 36 kV)《额定电压6-30kV(Um=7.2-36kV)的电力电缆附件的试验方法》.pdfIEC 61442-2005 Test methods for accessories for power cables with rated voltages from 6 kV (Um = 7 2 kV) up to 30 kV (Um = 36 kV)《额定电压6-30kV(Um=7.2-36kV)的电力电缆附件的试验方法》.pdf

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IEC 61439-6-2012 Low-voltage switchgear and controlgear assemblies - Part 6 Busbar trunking systems (busways)《低压开关设备和控制设备配件.第6部分 中继系统(母线槽)》.pdf 90

IEC 61439-6-2012 Low-voltage switchgear and controlgear assemblies - Part 6 Busbar trunking systems (busways)《低压开关设备和控制设备配件.第6部分 中继系统(母线槽)》.pdfIEC 61439-6-2012 Low-voltage switchgear and controlgear assemblies - Part 6 Busbar trunking systems (busways)《低压开关设备和控制设备配件.第6部分 中继系统(母线槽)》.pdf

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IEC 61439-5-2014 Low-voltage switchgear and controlgear assemblies - Part 5 Assemblies for power distribution in public networks《低压开关设备和控制设备配件.第5部分 公共网络配电用配件》.pdf 76

IEC 61439-5-2014 Low-voltage switchgear and controlgear assemblies - Part 5 Assemblies for power distribution in public networks《低压开关设备和控制设备配件.第5部分 公共网络配电用配件》.pdfIEC 61439-5-2014 Low-voltage switchgear and controlgear assemblies - Part 5 Assemblies for power distribution in public networks《低压开关设备和控制设备配件.第5部分 公共网络配电用配件》.pdf

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IEC 61439-4-2012 Low-voltage switchgear and controlgear assemblies - Part 4 Particular requirements for assemblies for construction sites (ACS)《低压开关设备和控制设备配件.第4部分 建筑工地用装配(ACS)的详细要求》.pdf 62

IEC 61439-4-2012 Low-voltage switchgear and controlgear assemblies - Part 4 Particular requirements for assemblies for construction sites (ACS)《低压开关设备和控制设备配件.第4部分 建筑工地用装配(ACS)的详细要求》.pdfIEC 61439-4-2012 Low-voltage switchgear and controlgear assemblies - Part 4 Particular requirements for assemblies for construction sites (ACS)《低压开关设备和控制设备配件.第4部分 建筑工地用装配(ACS)的详细要求》.pdf

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IEC 61439-3-2012 Low-voltage switchgear and controlgear assemblies - Part 3 Distribution boards intended to be operated by ordinary persons (DBO)《低压成套开关设备和控制设备.第3部分 拟由普通人员操作的配电板(DBO)》.pdf 44

IEC 61439-3-2012 Low-voltage switchgear and controlgear assemblies - Part 3 Distribution boards intended to be operated by ordinary persons (DBO)《低压成套开关设备和控制设备.第3部分 拟由普通人员操作的配电板(DBO)》.pdfIEC 61439-3-2012 Low-voltage switchgear and controlgear assemblies - Part 3 Distribution boards intended to be operated by ordinary persons (DBO)《低压成套开关设备和控制设备.第3部分 拟由普通人员操作的配电板(DBO)》.pdf

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