Guhindura, nkibikorwa bisanzwe byo guca ibyuma, bikoreshwa cyane mubijyanye no gukora imashini. Ikoreshwa cyane cyane mugutunganya ibyuma byuzuzanya byuzuzanya, nkibiti, ibikoresho, insinga, nibindi. Inzira yo guhinduka iragoye, ariko binyuze muri desi yumvikana ...
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