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NF Z83-536-1996 Digital cellular telecommunications system (phase 2) Technical realization of the short message service (SMS) point-to-point (PP) (GSM 03 40) 《蜂窝式数字电信系统(第2段) 点对点(PP.pdf 94

NF Z83-536-1996 Digital cellular telecommunications system (phase 2) Technical realization of the short message service (SMS) point-to-point (PP) (GSM 03 40) 《蜂窝式数字电信系统(第2段) 点对点(PP.pdfNF Z83-536-1996 Digital cellular telecommunications system (phase 2) Technical realization of the short message service (SMS) point-to-point (PP) (GSM 03 40) 《蜂窝式数字电信系统(第2段) 点对点(PP.pdf

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NF Z66-393-1993 Information systems interconnection - ISDN - Provision of OSI connection-mode transport service over the OSI connection-mode network service by using an ISDN circuieman.pdf 39

NF Z66-393-1993 Information systems interconnection - ISDN - Provision of OSI connection-mode transport service over the OSI connection-mode network service by using an ISDN circuieman.pdfNF Z66-393-1993 Information systems interconnection - ISDN - Provision of OSI connection-mode transport service over the OSI connection-mode network service by using an ISDN circuieman.pdf

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NF Z66-392-1993 Information systems interconnection - ISDN - Provision of OSI connection-mode transport service over the OSI connection-mode network service by using an ISDN circuierma.pdf 33

NF Z66-392-1993 Information systems interconnection - ISDN - Provision of OSI connection-mode transport service over the OSI connection-mode network service by using an ISDN circuierma.pdfNF Z66-392-1993 Information systems interconnection - ISDN - Provision of OSI connection-mode transport service over the OSI connection-mode network service by using an ISDN circuierma.pdf

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NF Z66-379-1997 Information technology Telecommunications and information exchange between systems Transport layer security protocol 《信息技术 系统间电信和信息交换 传输层安全协议》.pdf 61

NF Z66-379-1997 Information technology Telecommunications and information exchange between systems Transport layer security protocol 《信息技术 系统间电信和信息交换 传输层安全协议》.pdfNF Z66-379-1997 Information technology Telecommunications and information exchange between systems Transport layer security protocol 《信息技术 系统间电信和信息交换 传输层安全协议》.pdf

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NF Z66-353-1991 Information technology - Information systems interconnection - OSI layers 1 to 4 addressing《信息技术 信息系统互连 OSI1至4层寻址》.pdf 35

NF Z66-353-1991 Information technology - Information systems interconnection - OSI layers 1 to 4 addressing《信息技术 信息系统互连 OSI1至4层寻址》.pdfNF Z66-353-1991 Information technology - Information systems interconnection - OSI layers 1 to 4 addressing《信息技术 信息系统互连 OSI1至4层寻址》.pdf

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NF Z66-339-1995 Information technology Open systems interconnection Transport service definition 《信息技术 开放系统互连 传输服务定义》.pdf 35

NF Z66-339-1995 Information technology Open systems interconnection Transport service definition 《信息技术 开放系统互连 传输服务定义》.pdfNF Z66-339-1995 Information technology Open systems interconnection Transport service definition 《信息技术 开放系统互连 传输服务定义》.pdf

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NF X43-276-1993 Workplace atmospheres Size fraction definitions for measurement of airborne particles 《工作场所大气 测量空气中颗粒物用的粒度定义》.pdf 13

NF X43-276-1993 Workplace atmospheres Size fraction definitions for measurement of airborne particles 《工作场所大气 测量空气中颗粒物用的粒度定义》.pdfNF X43-276-1993 Workplace atmospheres Size fraction definitions for measurement of airborne particles 《工作场所大气 测量空气中颗粒物用的粒度定义》.pdf

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NF X43-275-2002 Air quality - Workplace air - Determination by atomic spectrometrie of elements present in workplace air 《空气质量 工作场所空气 用原子光谱测量法测定工作场所空气中存在的元素》.pdf 35

NF X43-275-2002 Air quality - Workplace air - Determination by atomic spectrometrie of elements present in workplace air 《空气质量 工作场所空气 用原子光谱测量法测定工作场所空气中存在的元素》.pdfNF X43-275-2002 Air quality - Workplace air - Determination by atomic spectrometrie of elements present in workplace air 《空气质量 工作场所空气 用原子光谱测量法测定工作场所空气中存在的元素》.pdf

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NF X43-273-1991 Air quality Workplace air Determination of methylbromide Sampling by pumping trough activated charcoal 《空气质量 工作场所空气 甲基溴的测定 经活性炭处理的泵抽吸取样》.pdf 15

NF X43-273-1991 Air quality Workplace air Determination of methylbromide Sampling by pumping trough activated charcoal 《空气质量 工作场所空气 甲基溴的测定 经活性炭处理的泵抽吸取样》.pdfNF X43-273-1991 Air quality Workplace air Determination of methylbromide Sampling by pumping trough activated charcoal 《空气质量 工作场所空气 甲基溴的测定 经活性炭处理的泵抽吸取样》.pdf

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NF X43-261-1988 Air quality Workplace atmospheres Sampling in a fixed location and measurement of total particle pollution 《空气质量 工作场所空气 定位采样和微粒总污染度的测量》.pdf 9

NF X43-261-1988 Air quality Workplace atmospheres Sampling in a fixed location and measurement of total particle pollution 《空气质量 工作场所空气 定位采样和微粒总污染度的测量》.pdfNF X43-261-1988 Air quality Workplace atmospheres Sampling in a fixed location and measurement of total particle pollution 《空气质量 工作场所空气 定位采样和微粒总污染度的测量》.pdf

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