Abstract: Mu 1987, inyandiko ya tekiniki yiswe "ibisabwa mu guhuza ibikorwa by’inyongera mu mugereka wa 1 kugeza iec439 ″ yateguwe na komite ishinzwe tekinike ya komisiyo mpuzamahanga ishinzwe amashanyarazi (IEC) 17D, yatangije ku mugaragaro guhuza ibikorwa by’ubwishingizi mu ...
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