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NF Z83-532-1996 Digital cellular telecommunications system (phase 2) Support of dual tone multi-frequency signalling (DTMF) via the GSM system (GSM 03 14) 《蜂窝式数字电信系统(第2段) 经由GSM系统支持.pdf 11

NF Z83-532-1996 Digital cellular telecommunications system (phase 2) Support of dual tone multi-frequency signalling (DTMF) via the GSM system (GSM 03 14) 《蜂窝式数字电信系统(第2段) 经由GSM系统支持.pdfNF Z83-532-1996 Digital cellular telecommunications system (phase 2) Support of dual tone multi-frequency signalling (DTMF) via the GSM system (GSM 03 14) 《蜂窝式数字电信系统(第2段) 经由GSM系统支持.pdf

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NF Z83-531-1996 Digital cellular telecommunications system (phase 2) Discontinuous reception (DRX) in the GSM system (GSM 03 13) 《蜂窝式数字通信系统(第2段) GSM系统中的间断接收(GSM 03 13)》.pdf 8

NF Z83-531-1996 Digital cellular telecommunications system (phase 2) Discontinuous reception (DRX) in the GSM system (GSM 03 13) 《蜂窝式数字通信系统(第2段) GSM系统中的间断接收(GSM 03 13)》.pdfNF Z83-531-1996 Digital cellular telecommunications system (phase 2) Discontinuous reception (DRX) in the GSM system (GSM 03 13) 《蜂窝式数字通信系统(第2段) GSM系统中的间断接收(GSM 03 13)》.pdf

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NF Z66-328-1988 Information systems interconnection - Digital data circuit (circuit switched data networks) - Provision of the OSI Connection-mode Transport service and the OSI con.pdf 34

NF Z66-328-1988 Information systems interconnection - Digital data circuit (circuit switched data networks) - Provision of the OSI Connection-mode Transport service and the OSI con.pdfNF Z66-328-1988 Information systems interconnection - Digital data circuit (circuit switched data networks) - Provision of the OSI Connection-mode Transport service and the OSI con.pdf

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NF Z66-327-1988 Information systems interconnection - Packet switched data networks Switched access《信息系统互连 包交换数据网 交换访问》.pdf 50

NF Z66-327-1988 Information systems interconnection - Packet switched data networks Switched access《信息系统互连 包交换数据网 交换访问》.pdfNF Z66-327-1988 Information systems interconnection - Packet switched data networks Switched access《信息系统互连 包交换数据网 交换访问》.pdf

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NF Z66-317-1988 Information systems interconnection - Packet switched data networks Permanent access《信息系统互连 包交换数据网 永久访问》.pdf 37

NF Z66-317-1988 Information systems interconnection - Packet switched data networks Permanent access《信息系统互连 包交换数据网 永久访问》.pdfNF Z66-317-1988 Information systems interconnection - Packet switched data networks Permanent access《信息系统互连 包交换数据网 永久访问》.pdf

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NF Z66-314-1987 Information systems interconnection - Local area networks - Provisions of the OSI connection-mode transport service using connectionless- mode Network service to a .pdf 18

NF Z66-314-1987 Information systems interconnection - Local area networks - Provisions of the OSI connection-mode transport service using connectionless- mode Network service to a .pdfNF Z66-314-1987 Information systems interconnection - Local area networks - Provisions of the OSI connection-mode transport service using connectionless- mode Network service to a .pdf

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NF Z66-301-1987 Information processing systems Data communication Multilink procedures 《信息处理系统 数据通信 多链路规程》.pdf 14

NF Z66-301-1987 Information processing systems Data communication Multilink procedures 《信息处理系统 数据通信 多链路规程》.pdfNF Z66-301-1987 Information processing systems Data communication Multilink procedures 《信息处理系统 数据通信 多链路规程》.pdf

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NF X43-255-1990 Work-place air Determination of mass concentration nitrogen dioxide Method using detector tubes for short-term sampling with direct indication 《工作场所空气 二氧化氮浓度的测定 使用检.pdf 10

NF X43-255-1990 Work-place air Determination of mass concentration nitrogen dioxide Method using detector tubes for short-term sampling with direct indication 《工作场所空气 二氧化氮浓度的测定 使用检.pdfNF X43-255-1990 Work-place air Determination of mass concentration nitrogen dioxide Method using detector tubes for short-term sampling with direct indication 《工作场所空气 二氧化氮浓度的测定 使用检.pdf

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NF X43-254-1990 Work-place air Determination of mass concentration of carbon monoxide Method using detector tubes for short-term sampling with direct indication 《工作场所空气 一氧化碳质量浓度的测定.pdf 8

NF X43-254-1990 Work-place air Determination of mass concentration of carbon monoxide Method using detector tubes for short-term sampling with direct indication 《工作场所空气 一氧化碳质量浓度的测定.pdfNF X43-254-1990 Work-place air Determination of mass concentration of carbon monoxide Method using detector tubes for short-term sampling with direct indication 《工作场所空气 一氧化碳质量浓度的测定.pdf

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NF X43-103-1996 Air quality Olfactometric measurements Measurement of the odour of a gazeous effluent Supra-threshold methods 《空气质量 嗅觉仪测量 废气发出的气味的测量 超阀限方法》.pdf 20

NF X43-103-1996 Air quality Olfactometric measurements Measurement of the odour of a gazeous effluent Supra-threshold methods 《空气质量 嗅觉仪测量 废气发出的气味的测量 超阀限方法》.pdfNF X43-103-1996 Air quality Olfactometric measurements Measurement of the odour of a gazeous effluent Supra-threshold methods 《空气质量 嗅觉仪测量 废气发出的气味的测量 超阀限方法》.pdf

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