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HD 549 S1-1989 Conference Systems - Electrical and Audio Requirements《会议系统 电气和音频的性能要求》.pdf 3

HD 549 S1-1989 Conference Systems - Electrical and Audio Requirements《会议系统 电气和音频的性能要求》.pdfHD 549 S1-1989 Conference Systems - Electrical and Audio Requirements《会议系统 电气和音频的性能要求》.pdf

上传人：花仙子
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HD 548 3 S1-1992 Instrument Transformers Part 3 Combined Transformers《仪用互感器 第3部分 复式互感器》.pdf 5

HD 548 3 S1-1992 Instrument Transformers Part 3 Combined Transformers《仪用互感器 第3部分 复式互感器》.pdfHD 548 3 S1-1992 Instrument Transformers Part 3 Combined Transformers《仪用互感器 第3部分 复式互感器》.pdf

上传人：花仙子
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HD 547 S1-1990 Conductive Clothing for Live Working at a Nominal Voltage up to 800 KV a c 《在标称交流电压达到800 kV时带电作业用的导电衣着》.pdf 3

HD 547 S1-1990 Conductive Clothing for Live Working at a Nominal Voltage up to 800 KV a c 《在标称交流电压达到800 kV时带电作业用的导电衣着》.pdfHD 547 S1-1990 Conductive Clothing for Live Working at a Nominal Voltage up to 800 KV a c 《在标称交流电压达到800 kV时带电作业用的导电衣着》.pdf

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HD 546 4 S1-1992 Telecontrol Equipment and Systems Part 4 Performance Requirements《远距离控制设备和系统 第4部分 性能要求(IEC 870-4-90)》.pdf 5

HD 546 4 S1-1992 Telecontrol Equipment and Systems Part 4 Performance Requirements《远距离控制设备和系统 第4部分 性能要求(IEC 870-4-90)》.pdfHD 546 4 S1-1992 Telecontrol Equipment and Systems Part 4 Performance Requirements《远距离控制设备和系统 第4部分 性能要求(IEC 870-4-90)》.pdf

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HD 546 3 S1-1991 Telecontrol Equipment and Systems Part 3 Interfaces (Electrical Characteristics)《遥控设备和系统 第3部分 接口(电气特性)》.pdf 5

HD 546 3 S1-1991 Telecontrol Equipment and Systems Part 3 Interfaces (Electrical Characteristics)《遥控设备和系统 第3部分 接口(电气特性)》.pdfHD 546 3 S1-1991 Telecontrol Equipment and Systems Part 3 Interfaces (Electrical Characteristics)《遥控设备和系统 第3部分 接口(电气特性)》.pdf

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HD 369 5-1987 Audio-Visual Video and Television Equipment and Systems Part 5 Control Synchronization and Address Codes Chapter 1 Synchronized Tape Visual Operat.pdf 2

HD 369 5-1987 Audio-Visual Video and Television Equipment and Systems Part 5 Control Synchronization and Address Codes Chapter 1 Synchronized Tape Visual Operat.pdfHD 369 5-1987 Audio-Visual Video and Television Equipment and Systems Part 5 Control Synchronization and Address Codes Chapter 1 Synchronized Tape Visual Operat.pdf

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HD 369 5 2-1986 Audio-Visual Video and Television Equipment and Systems Part 5 Control Synchronization and Address Codes Chapter II Control Systems for Two Stil.pdf 2

HD 369 5 2-1986 Audio-Visual Video and Television Equipment and Systems Part 5 Control Synchronization and Address Codes Chapter II Control Systems for Two Stil.pdfHD 369 5 2-1986 Audio-Visual Video and Television Equipment and Systems Part 5 Control Synchronization and Address Codes Chapter II Control Systems for Two Stil.pdf

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HD 369 4-1984 Audio-Visual Video and Television Equipment and Systems Part 4 Preferred Matching Valves for the Interconnection of Equipment in a System《视听 视频和电视.pdf 2

HD 369 4-1984 Audio-Visual Video and Television Equipment and Systems Part 4 Preferred Matching Valves for the Interconnection of Equipment in a System《视听 视频和电视.pdfHD 369 4-1984 Audio-Visual Video and Television Equipment and Systems Part 4 Preferred Matching Valves for the Interconnection of Equipment in a System《视听 视频和电视.pdf

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HD 369 3-1986 Audio-Visual Video and Television Equipment and Systems Part 3 Connectors for the Interconnection of Equipment in Audio- Visual Systems《视听 视频和电视设备.pdf 2

HD 369 3-1986 Audio-Visual Video and Television Equipment and Systems Part 3 Connectors for the Interconnection of Equipment in Audio- Visual Systems《视听 视频和电视设备.pdfHD 369 3-1986 Audio-Visual Video and Television Equipment and Systems Part 3 Connectors for the Interconnection of Equipment in Audio- Visual Systems《视听 视频和电视设备.pdf

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HD 369 2-1978 Audio-Visual Video and Television Equipment and Systems Part 2 Explanation of General Terms《视听 视频和电视设备及系统 第2部分 通用术语解释》.pdf 2

HD 369 2-1978 Audio-Visual Video and Television Equipment and Systems Part 2 Explanation of General Terms《视听 视频和电视设备及系统 第2部分 通用术语解释》.pdfHD 369 2-1978 Audio-Visual Video and Television Equipment and Systems Part 2 Explanation of General Terms《视听 视频和电视设备及系统 第2部分 通用术语解释》.pdf

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