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IEC 60381-1:1982 EN-FR
Analogue signals for process control systems. Part 1: Direct current signals
现行
发布日期 :
1982-01-01
实施日期 :
IEC TS 61085:1992 EN-FR
General considerations for telecommunication services for electric power systems
现行
发布日期 :
1970-01-01
实施日期 :