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 GB/T 14048.13-2006  
Low-voltage switchgear and controlgear - Part 5-3: Control circuit devices and switching elements - Requirements for proximity devices with defined behaviour under fault conditions(PDF)

低压开关设备和控制设备 第5-3部分:控制电路电器和开关元件-在故障条件下具有确定功能的接近开关(PDF)的要求
 GB/T 14048.15-2006  
Low-voltage switchgear and controlgear - Part 5-6: Control circuit devices and switching elements - DC interface for proximity sensors and switching amplifiers(NAMUR)

低压开关设备和控制设备 第5-6部分:控制电路电器和开关元件-接近传感器和开关放大器的DC接口(NAMUR)
 GB/T 20612.1-2006  
Traffic and Traveler Information (TTI) - TTI messages via traffic message coding - Part 1: Coding protocol for Radio Data System-Traffic Message Channel (RDS-TMC) using ALERT-C

交通及出行者信息(TTI) 经交通报文编码的TTI报文 第1部分:使用ALERT-C的广播数据系统-交通报文频道(RDS-TMC)编码协议
 GB/T 20540.3-2006  
Digital data communication for measurement and control - Fieldbus for use in industrial systems Type 3: proFIBUS specification -Part 3: Data link layer service definition

测量和控制数字数据通信 工业控制系统用现场总线 类型3:PROFIBUS规范 第3部分:数据链路层服务定义

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