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IEC 60191-2X-1999 Mechanical standardization of semiconductor devices - Part 2 Dimensions Supplement 22《半导体器件的机械标准化 第2部分 尺寸 补充22》.pdf 38

IEC 60191-2X-1999 Mechanical standardization of semiconductor devices - Part 2 Dimensions Supplement 22《半导体器件的机械标准化 第2部分 尺寸 补充22》.pdfIEC 60191-2X-1999 Mechanical standardization of semiconductor devices - Part 2 Dimensions Supplement 22《半导体器件的机械标准化 第2部分 尺寸 补充22》.pdf

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IEC 60055-2-1981 Paper-insulated metal-sheathed cabled for rated voltages up to 18 30 kV (with copper or aluminium conductors and excluding gas-pressure and oil-filled cables) Part.pdf 148

IEC 60055-2-1981 Paper-insulated metal-sheathed cabled for rated voltages up to 18 30 kV (with copper or aluminium conductors and excluding gas-pressure and oil-filled cables) Part.pdfIEC 60055-2-1981 Paper-insulated metal-sheathed cabled for rated voltages up to 18 30 kV (with copper or aluminium conductors and excluding gas-pressure and oil-filled cables) Part.pdf

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IEC 60055-1-1997 Paper-insulated metal-sheathed cabled for rated voltages up to 18 30 kV (with copper or aluminium conductors and excluding gas-pressure and oil-filled cables) - Pa.pdf 64

IEC 60055-1-1997 Paper-insulated metal-sheathed cabled for rated voltages up to 18 30 kV (with copper or aluminium conductors and excluding gas-pressure and oil-filled cables) - Pa.pdfIEC 60055-1-1997 Paper-insulated metal-sheathed cabled for rated voltages up to 18 30 kV (with copper or aluminium conductors and excluding gas-pressure and oil-filled cables) - Pa.pdf

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IEC 60051-9-1988 Direct acting indicating analogue electrical measuring instruments and their accessories part 9 recommended test methods《直接作用模拟指示电测量仪表及其附件 第9部分 推荐试验方法》.pdf 134

IEC 60051-9-1988 Direct acting indicating analogue electrical measuring instruments and their accessories part 9 recommended test methods《直接作用模拟指示电测量仪表及其附件 第9部分 推荐试验方法》.pdfIEC 60051-9-1988 Direct acting indicating analogue electrical measuring instruments and their accessories part 9 recommended test methods《直接作用模拟指示电测量仪表及其附件 第9部分 推荐试验方法》.pdf

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IEC 60051-4-1984 Direct acting indicating analogue electrical measuring instruments and their accessories Part 4 Special requirements for frequency meters《直接作用模拟指示电测量仪表及其附件 第4部分 频率表的特殊要求》.pdf 22

IEC 60051-4-1984 Direct acting indicating analogue electrical measuring instruments and their accessories Part 4 Special requirements for frequency meters《直接作用模拟指示电测量仪表及其附件 第4部分 频率表的特殊要求》.pdfIEC 60051-4-1984 Direct acting indicating analogue electrical measuring instruments and their accessories Part 4 Special requirements for frequency meters《直接作用模拟指示电测量仪表及其附件 第4部分 频率表的特殊要求》.pdf

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IEC 60050-904-2014 International Electrotechnical Vocabulary - Part 904 Environmental standardization for electrical and electronic products and systems《国际电工词汇 第904部分 电气和电子产品和系统的环境标准》.pdf 66

IEC 60050-904-2014 International Electrotechnical Vocabulary - Part 904 Environmental standardization for electrical and electronic products and systems《国际电工词汇 第904部分 电气和电子产品和系统的环境标准》.pdfIEC 60050-904-2014 International Electrotechnical Vocabulary - Part 904 Environmental standardization for electrical and electronic products and systems《国际电工词汇 第904部分 电气和电子产品和系统的环境标准》.pdf

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DB52 T 625-2010 《贵州有机茶栽培技术规程》.pdf 16

DB52 T 625-2010 《贵州有机茶栽培技术规程》.pdfDB52 T 625-2010 《贵州有机茶栽培技术规程》.pdf

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DB52 T 624-2010 《贵州无公害茶叶栽培技术规程》.pdf 17

DB52 T 624-2010 《贵州无公害茶叶栽培技术规程》.pdfDB52 T 624-2010 《贵州无公害茶叶栽培技术规程》.pdf

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DB52 T 623-2010 《贵州茶树良种短穗扦插繁育技术规程》.pdf 10

DB52 T 623-2010 《贵州茶树良种短穗扦插繁育技术规程》.pdfDB52 T 623-2010 《贵州茶树良种短穗扦插繁育技术规程》.pdf

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DB52 T 622-2010 《贵州有机茶产地环境条件》.pdf 11

DB52 T 622-2010 《贵州有机茶产地环境条件》.pdfDB52 T 622-2010 《贵州有机茶产地环境条件》.pdf

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