Ushwankathelo: Ngo-1987, uxwebhu lobuchwephesha olunesihloko esithi “iimfuno zolungelelwaniso lokugquma kwiSupplement 1 to iec439″ lwayilwa yi sub Technical Committee yeInternational Electrotechnical Commission (IEC) 17D, eyathi yazisa ngokusesikweni ulungelelwaniso lokugquma kwi...
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