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MT T 656-1997 Belt conveyor frame for coal mining Form and basic size《煤矿用带式输送机机架 型式与基本尺寸》.pdf 14

MT T 656-1997 Belt conveyor frame for coal mining Form and basic size《煤矿用带式输送机机架 型式与基本尺寸》.pdfMT T 656-1997 Belt conveyor frame for coal mining Form and basic size《煤矿用带式输送机机架 型式与基本尺寸》.pdf

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MT T 642-1996 《管道瓦斯抽放综合参数测定仪 技术条件》.pdf 10

MT T 642-1996 《管道瓦斯抽放综合参数测定仪 技术条件》.pdfMT T 642-1996 《管道瓦斯抽放综合参数测定仪 技术条件》.pdf

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MT T 636-1996 《矿井主要通风机优选程序编制 通用规则》.pdf 5

MT T 636-1996 《矿井主要通风机优选程序编制 通用规则》.pdfMT T 636-1996 《矿井主要通风机优选程序编制 通用规则》.pdf

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MT T 635-1996 《矿井巷道通风摩擦阻力系数 测定方法》.pdf 9

MT T 635-1996 《矿井巷道通风摩擦阻力系数 测定方法》.pdfMT T 635-1996 《矿井巷道通风摩擦阻力系数 测定方法》.pdf

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MT T 630-1996 《气体检测管用蛇腹形负压式 采样器技术条件》.pdf 7

MT T 630-1996 《气体检测管用蛇腹形负压式 采样器技术条件》.pdfMT T 630-1996 《气体检测管用蛇腹形负压式 采样器技术条件》.pdf

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IEC TR 60870-6-505 Edition 11-2006 Telecontrol equipment and systems - Part.6-505 Telecontrol protocols compatible with ISO standards and ITU-T recommendations .pdf 86

IEC TR 60870-6-505 Edition 11-2006 Telecontrol equipment and systems - Part.6-505 Telecontrol protocols compatible with ISO standards and ITU-T recommendations .pdfIEC TR 60870-6-505 Edition 11-2006 Telecontrol equipment and systems - Part.6-505 Telecontrol protocols compatible with ISO standards and ITU-T recommendations .pdf

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IEC TR 60344 CORR1-2012 Calculation of d c resistance of plain and coated copper conductors of low-frequency cables and wires - Application guide Corrigendum 1《.pdf 1

IEC TR 60344 CORR1-2012 Calculation of d c resistance of plain and coated copper conductors of low-frequency cables and wires - Application guide Corrigendum 1《.pdfIEC TR 60344 CORR1-2012 Calculation of d c resistance of plain and coated copper conductors of low-frequency cables and wires - Application guide Corrigendum 1《.pdf

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IEC 62560 CORR1-2012 Self-ballasted LED-lamps for general lighting services by voltage 50 V - Safety specifications Corrigendum 1《普通照明用50 V以上自镇流LED灯 安全要求 勘误表1》.pdf 1

IEC 62560 CORR1-2012 Self-ballasted LED-lamps for general lighting services by voltage 50 V - Safety specifications Corrigendum 1《普通照明用50 V以上自镇流LED灯 安全要求 勘误表1》.pdfIEC 62560 CORR1-2012 Self-ballasted LED-lamps for general lighting services by voltage 50 V - Safety specifications Corrigendum 1《普通照明用50 V以上自镇流LED灯 安全要求 勘误表1》.pdf

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IEC 62505-3-2-2009 Railway applications - Fixed installations - Particular requirements for a c switchgear - Part.3-2 Measurement control and protection devices.pdf 22

IEC 62505-3-2-2009 Railway applications - Fixed installations - Particular requirements for a c switchgear - Part.3-2 Measurement control and protection devices.pdfIEC 62505-3-2-2009 Railway applications - Fixed installations - Particular requirements for a c switchgear - Part.3-2 Measurement control and protection devices.pdf

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IEC 62386-208-2009 Digital addressable lighting interface - Part 208 Particular requirements for contol gear - Switching function (device type 7)《数字可寻址照明接口 第208.pdf 146

IEC 62386-208-2009 Digital addressable lighting interface - Part 208 Particular requirements for contol gear - Switching function (device type 7)《数字可寻址照明接口 第208.pdfIEC 62386-208-2009 Digital addressable lighting interface - Part 208 Particular requirements for contol gear - Switching function (device type 7)《数字可寻址照明接口 第208.pdf

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