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IEC 61514-2-2013 Industrial Process Control Systems - Part 2 Methods of evaluating the performance of intelligent valve positioners with pneumatic outputs《工业过程控制系统 第2部分 气动输出智能阀门定位器性能的评估方法》.pdf 82

IEC 61514-2-2013 Industrial Process Control Systems - Part 2 Methods of evaluating the performance of intelligent valve positioners with pneumatic outputs《工业过程控制系统 第2部分 气动输出智能阀门定位器性能的评估方法》.pdfIEC 61514-2-2013 Industrial Process Control Systems - Part 2 Methods of evaluating the performance of intelligent valve positioners with pneumatic outputs《工业过程控制系统 第2部分 气动输出智能阀门定位器性能的评估方法》.pdf

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IEC 61512-3-2008 Batch control - Part 3 General and site recipe models and representation《批量控制.第3部分 一般和现场制法模型及表示》.pdf 138

IEC 61512-3-2008 Batch control - Part 3 General and site recipe models and representation《批量控制.第3部分 一般和现场制法模型及表示》.pdfIEC 61512-3-2008 Batch control - Part 3 General and site recipe models and representation《批量控制.第3部分 一般和现场制法模型及表示》.pdf

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IEC 61512-2-2001 Batch control - Part 2 Data structures and guidelines for languages《批控制 第2部分：数据结构和语言指南》.pdf 214

IEC 61512-2-2001 Batch control - Part 2 Data structures and guidelines for languages《批控制 第2部分：数据结构和语言指南》.pdfIEC 61512-2-2001 Batch control - Part 2 Data structures and guidelines for languages《批控制 第2部分：数据结构和语言指南》.pdf

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IEC 61237-2-1995 Broadcast video tape recorders - Methods of measurement - Part 2 Electrical measurements of analogue composite video signals《广播磁带录像机 测量方法 第2部分 模拟复合视频信号的电气测量》.pdf 130

IEC 61237-2-1995 Broadcast video tape recorders - Methods of measurement - Part 2 Electrical measurements of analogue composite video signals《广播磁带录像机 测量方法 第2部分 模拟复合视频信号的电气测量》.pdfIEC 61237-2-1995 Broadcast video tape recorders - Methods of measurement - Part 2 Electrical measurements of analogue composite video signals《广播磁带录像机 测量方法 第2部分 模拟复合视频信号的电气测量》.pdf

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IEC 61237-1-1994 Broadcast video tape recorders - Methods of measurement - Part 1 Mechanical measurements《广播磁带录像机 测量方法 第1部分 机械测量》.pdf 36

IEC 61237-1-1994 Broadcast video tape recorders - Methods of measurement - Part 1 Mechanical measurements《广播磁带录像机 测量方法 第1部分 机械测量》.pdfIEC 61237-1-1994 Broadcast video tape recorders - Methods of measurement - Part 1 Mechanical measurements《广播磁带录像机 测量方法 第1部分 机械测量》.pdf

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IEC 61235-1993 Live working insulating hollow tubes for electrical purposes《带电作业 电工用绝缘空心管》.pdf 59

IEC 61235-1993 Live working insulating hollow tubes for electrical purposes《带电作业 电工用绝缘空心管》.pdfIEC 61235-1993 Live working insulating hollow tubes for electrical purposes《带电作业 电工用绝缘空心管》.pdf

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IEC 61234-1-1994 Method of test for the hydrolytic stability of electrical insulating materials part 1 plastic films《电气绝缘材料水解稳定性的试验方法 第1部分 塑料薄膜》.pdf 20

IEC 61234-1-1994 Method of test for the hydrolytic stability of electrical insulating materials part 1 plastic films《电气绝缘材料水解稳定性的试验方法 第1部分 塑料薄膜》.pdfIEC 61234-1-1994 Method of test for the hydrolytic stability of electrical insulating materials part 1 plastic films《电气绝缘材料水解稳定性的试验方法 第1部分 塑料薄膜》.pdf

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IEC 61231-2010 International lamp coding system (ILCOS)《国际灯具编码系统(ILCOS)》.pdf 52

IEC 61231-2010 International lamp coding system (ILCOS)《国际灯具编码系统(ILCOS)》.pdfIEC 61231-2010 International lamp coding system (ILCOS)《国际灯具编码系统(ILCOS)》.pdf

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IEC 61079-3-1993 Methods of measurement on receivers for satellite broadcast transmissions in the 12 GHz band part 3 electrical measurements of overall performance of receiver syst.pdf 50

IEC 61079-3-1993 Methods of measurement on receivers for satellite broadcast transmissions in the 12 GHz band part 3 electrical measurements of overall performance of receiver syst.pdfIEC 61079-3-1993 Methods of measurement on receivers for satellite broadcast transmissions in the 12 GHz band part 3 electrical measurements of overall performance of receiver syst.pdf

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IEC 61078-2016 Reliability block diagrams《可靠性方框图》.pdf 254

IEC 61078-2016 Reliability block diagrams《可靠性方框图》.pdfIEC 61078-2016 Reliability block diagrams《可靠性方框图》.pdf

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