Imisumari ya beto, izwi kandi nk'imisumari y'ibyuma bya sima na sima ya sima, ni ubwoko bushya bwibikoresho. Nubwoko bushya bwibikoresho byubaka bikozwe hakoreshejwe beto idasanzwe. Nubwoko bushya bwibicuruzwa mu nganda zubaka, muri rusange bikoreshwa mu kubaka inyubako, muri beto ...
Soma byinshi