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Isku-dubbaridka dahaarka ee qalabka beddelka tamarta hooseeya
Soo koobid: 1987, dukumeenti farsamo oo xaq u leh "shuruudaha isuduwidda dahaarka ee Dheeraadka 1 ilaa iec439" waxaa diyaariyey Guddiga Farsamada Farsamada ee Guddiga Farsamada Caalamiga ah (IEC) 17D, kaas oo si rasmi ah u soo bandhigay isuduwidda dahaarka gudaha ...Akhri wax dheeraad ah
