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NF Z83-541-1997 Digital cellular telecommunications system (Phase 2) Routeing of calls to from Public Data Networks (PDN) (GSM 03 70) 《蜂窝式数字电信系统(第2段) 向 来自公共数据网(PDN)呼叫的路由选择(GSM 03 7.pdf 17

NF Z83-541-1997 Digital cellular telecommunications system (Phase 2) Routeing of calls to from Public Data Networks (PDN) (GSM 03 70) 《蜂窝式数字电信系统(第2段) 向 来自公共数据网(PDN)呼叫的路由选择(GSM 03 7.pdfNF Z83-541-1997 Digital cellular telecommunications system (Phase 2) Routeing of calls to from Public Data Networks (PDN) (GSM 03 70) 《蜂窝式数字电信系统(第2段) 向 来自公共数据网(PDN)呼叫的路由选择(GSM 03 7.pdf

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NF Z66-425-1993 Information systems interconnection - X 25 Protocol relaying - part5 Profile RC51 1111(M-IT-02R 32 over PSTN leased line)《信息系统互联 X25协议中继器 第5部分 剖面RC 51 1111(使用PSTN租用.pdf 9

NF Z66-425-1993 Information systems interconnection - X 25 Protocol relaying - part5 Profile RC51 1111(M-IT-02R 32 over PSTN leased line)《信息系统互联 X25协议中继器 第5部分 剖面RC 51 1111(使用PSTN租用.pdfNF Z66-425-1993 Information systems interconnection - X 25 Protocol relaying - part5 Profile RC51 1111(M-IT-02R 32 over PSTN leased line)《信息系统互联 X25协议中继器 第5部分 剖面RC 51 1111(使用PSTN租用.pdf

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NF Z66-424-1993 Information systems interconnection - X 25 Protocol relaying - part4 PSDN subnetwork dependent media dependent requirement for virtual calls over a permanent access.pdf 23

NF Z66-424-1993 Information systems interconnection - X 25 Protocol relaying - part4 PSDN subnetwork dependent media dependent requirement for virtual calls over a permanent access.pdfNF Z66-424-1993 Information systems interconnection - X 25 Protocol relaying - part4 PSDN subnetwork dependent media dependent requirement for virtual calls over a permanent access.pdf

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NF Z66-423-1993 Information systems interconnection - X 25 Protocol relaying - part3 ISO 8802-3 CSMA CD subnetwok dependent media dependent requirement《信息系统互连 X 25 协议转播 第3部分 ISO 88.pdf 11

NF Z66-423-1993 Information systems interconnection - X 25 Protocol relaying - part3 ISO 8802-3 CSMA CD subnetwok dependent media dependent requirement《信息系统互连 X 25 协议转播 第3部分 ISO 88.pdfNF Z66-423-1993 Information systems interconnection - X 25 Protocol relaying - part3 ISO 8802-3 CSMA CD subnetwok dependent media dependent requirement《信息系统互连 X 25 协议转播 第3部分 ISO 88.pdf

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NF Z66-422-1993 Information systems interconnection - X 25 Protocol relaying - part2 LAN subnetwork dependent media independent requirements《信息系统互连 X 25协议中继 第2部分 依赖于LAN子网 不依赖于媒体的需求.pdf 56

NF Z66-422-1993 Information systems interconnection - X 25 Protocol relaying - part2 LAN subnetwork dependent media independent requirements《信息系统互连 X 25协议中继 第2部分 依赖于LAN子网 不依赖于媒体的需求.pdfNF Z66-422-1993 Information systems interconnection - X 25 Protocol relaying - part2 LAN subnetwork dependent media independent requirements《信息系统互连 X 25协议中继 第2部分 依赖于LAN子网 不依赖于媒体的需求.pdf

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NF Z66-421-1993 Information systems interconnection - X 25 Protocol relaying - part1 General overview and subnetwork independent requirements《信息系统互连 X 25 协议转播 第1部分 综述和子网络独立要求》.pdf 17

NF Z66-421-1993 Information systems interconnection - X 25 Protocol relaying - part1 General overview and subnetwork independent requirements《信息系统互连 X 25 协议转播 第1部分 综述和子网络独立要求》.pdfNF Z66-421-1993 Information systems interconnection - X 25 Protocol relaying - part1 General overview and subnetwork independent requirements《信息系统互连 X 25 协议转播 第1部分 综述和子网络独立要求》.pdf

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NF X43-296-1995 Workplace air X-ray determination of the conventional alveolate fraction of crystalline silica Sampling by membrane filter 《工作场所空气 X射线测定结晶二氧化硅的常规蜂窝状部分 用薄膜过滤器取样》.pdf 19

NF X43-296-1995 Workplace air X-ray determination of the conventional alveolate fraction of crystalline silica Sampling by membrane filter 《工作场所空气 X射线测定结晶二氧化硅的常规蜂窝状部分 用薄膜过滤器取样》.pdfNF X43-296-1995 Workplace air X-ray determination of the conventional alveolate fraction of crystalline silica Sampling by membrane filter 《工作场所空气 X射线测定结晶二氧化硅的常规蜂窝状部分 用薄膜过滤器取样》.pdf

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NF X43-295-1995 Workplace air X-ray determination of the concentration of crystalline silica alveolate deposit Sampling by means of rotary cup device 《工作场所空气 X射线测定结晶二氧化硅蜂窝状沉积物的浓度 用.pdf 18

NF X43-295-1995 Workplace air X-ray determination of the concentration of crystalline silica alveolate deposit Sampling by means of rotary cup device 《工作场所空气 X射线测定结晶二氧化硅蜂窝状沉积物的浓度 用.pdfNF X43-295-1995 Workplace air X-ray determination of the concentration of crystalline silica alveolate deposit Sampling by means of rotary cup device 《工作场所空气 X射线测定结晶二氧化硅蜂窝状沉积物的浓度 用.pdf

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NF X43-294-1995 Workplace air Sampling and analysis of the polycyclic aromatic hydrocarbons 《工作场所空气 多环芳香碳氢化合物的取样和分析》.pdf 18

NF X43-294-1995 Workplace air Sampling and analysis of the polycyclic aromatic hydrocarbons 《工作场所空气 多环芳香碳氢化合物的取样和分析》.pdfNF X43-294-1995 Workplace air Sampling and analysis of the polycyclic aromatic hydrocarbons 《工作场所空气 多环芳香碳氢化合物的取样和分析》.pdf

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NF X43-293-1993 Workplace air Sampling and determination of diarsenic trioxide and of particulate compounds of arsenic 《工作场所空气 三氧化二砷及其砷的粒子化合物的取样和测定》.pdf 18

NF X43-293-1993 Workplace air Sampling and determination of diarsenic trioxide and of particulate compounds of arsenic 《工作场所空气 三氧化二砷及其砷的粒子化合物的取样和测定》.pdfNF X43-293-1993 Workplace air Sampling and determination of diarsenic trioxide and of particulate compounds of arsenic 《工作场所空气 三氧化二砷及其砷的粒子化合物的取样和测定》.pdf

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