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IEC 60721-2-8-1994 Classification of environmental conditions - Part 2 Environmental conditions appearing in nature - Section 8 Fire exposure《环境条件分类 第2部分 自然界出现的环境条件 第8节 火辐射》.pdf 48

IEC 60721-2-8-1994 Classification of environmental conditions - Part 2 Environmental conditions appearing in nature - Section 8 Fire exposure《环境条件分类 第2部分 自然界出现的环境条件 第8节 火辐射》.pdfIEC 60721-2-8-1994 Classification of environmental conditions - Part 2 Environmental conditions appearing in nature - Section 8 Fire exposure《环境条件分类 第2部分 自然界出现的环境条件 第8节 火辐射》.pdf

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IEC 60721-2-6-1990 Classification of environmental conditions part 2 environmental conditions appearing in nature earthquake vibration and shock《环境条件分类 第2-6部分 自然界出现的环境条件 地震振动与冲击》.pdf 26

IEC 60721-2-6-1990 Classification of environmental conditions part 2 environmental conditions appearing in nature earthquake vibration and shock《环境条件分类 第2-6部分 自然界出现的环境条件 地震振动与冲击》.pdfIEC 60721-2-6-1990 Classification of environmental conditions part 2 environmental conditions appearing in nature earthquake vibration and shock《环境条件分类 第2-6部分 自然界出现的环境条件 地震振动与冲击》.pdf

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IEC 60721-2-5-1991 Classification of environmental conditions part 2 environmental conditions appearing in nature section 5 dust sand salt mist《环境条件分类 第2部分 自然界出现的环境条件 第5节 灰尘、砂尘、盐雾》.pdf 40

IEC 60721-2-5-1991 Classification of environmental conditions part 2 environmental conditions appearing in nature section 5 dust sand salt mist《环境条件分类 第2部分 自然界出现的环境条件 第5节 灰尘、砂尘、盐雾》.pdfIEC 60721-2-5-1991 Classification of environmental conditions part 2 environmental conditions appearing in nature section 5 dust sand salt mist《环境条件分类 第2部分 自然界出现的环境条件 第5节 灰尘、砂尘、盐雾》.pdf

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IEC 60721-2-3-2013 Classification of environmental conditions - Part 2-3 Environmental conditions appearing in nature - Air pressure《环境条件的分类 第2-3部分 大自然呈现的环境条件 气压》.pdf 20

IEC 60721-2-3-2013 Classification of environmental conditions - Part 2-3 Environmental conditions appearing in nature - Air pressure《环境条件的分类 第2-3部分 大自然呈现的环境条件 气压》.pdfIEC 60721-2-3-2013 Classification of environmental conditions - Part 2-3 Environmental conditions appearing in nature - Air pressure《环境条件的分类 第2-3部分 大自然呈现的环境条件 气压》.pdf

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IEC 60721-2-2-2012 Classification of environmental conditions - Part 2-2 Environmental conditions appearing in nature - Precipitation and wind《环境条件分类.第2-2部分 自然界出现的环境条件.降水和风》.pdf 28

IEC 60721-2-2-2012 Classification of environmental conditions - Part 2-2 Environmental conditions appearing in nature - Precipitation and wind《环境条件分类.第2-2部分 自然界出现的环境条件.降水和风》.pdfIEC 60721-2-2-2012 Classification of environmental conditions - Part 2-2 Environmental conditions appearing in nature - Precipitation and wind《环境条件分类.第2-2部分 自然界出现的环境条件.降水和风》.pdf

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IEC 60510-1-1975 Methods of measurement for radio equipment used in satellite earth stations. Part 1 General《卫星地面站用无线电设备的测量方法 第1部分 总则》.pdf 24

IEC 60510-1-1975 Methods of measurement for radio equipment used in satellite earth stations. Part 1 General《卫星地面站用无线电设备的测量方法 第1部分 总则》.pdfIEC 60510-1-1975 Methods of measurement for radio equipment used in satellite earth stations. Part 1 General《卫星地面站用无线电设备的测量方法 第1部分 总则》.pdf

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IEC 60508-1975 Methods for measuring the performance of electric ironing machines for household and similar purposes《家用和类似用途的电熨烫机性能测试方法》.pdf 30

IEC 60508-1975 Methods for measuring the performance of electric ironing machines for household and similar purposes《家用和类似用途的电熨烫机性能测试方法》.pdfIEC 60508-1975 Methods for measuring the performance of electric ironing machines for household and similar purposes《家用和类似用途的电熨烫机性能测试方法》.pdf

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IEC 60507-2013 Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c systems《交流电流系统用高压陶瓷和玻璃绝缘子的人工污染度试验》.pdf 82

IEC 60507-2013 Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c systems《交流电流系统用高压陶瓷和玻璃绝缘子的人工污染度试验》.pdfIEC 60507-2013 Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c systems《交流电流系统用高压陶瓷和玻璃绝缘子的人工污染度试验》.pdf

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IEC 60505-2011 Evaluation and qualification of electrical insulation systems《电气绝缘系统的评定和鉴定》.pdf 156

IEC 60505-2011 Evaluation and qualification of electrical insulation systems《电气绝缘系统的评定和鉴定》.pdfIEC 60505-2011 Evaluation and qualification of electrical insulation systems《电气绝缘系统的评定和鉴定》.pdf

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IEC 60505 CORR 1-2017 Evaluation and qualification of electrical insulation systems Corrigendum 1《电气绝缘系统评估和评定 勘误表1》.pdf 1

IEC 60505 CORR 1-2017 Evaluation and qualification of electrical insulation systems Corrigendum 1《电气绝缘系统评估和评定 勘误表1》.pdfIEC 60505 CORR 1-2017 Evaluation and qualification of electrical insulation systems Corrigendum 1《电气绝缘系统评估和评定 勘误表1》.pdf

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