Umuyoboro w'icyuma ni umuyonga muremure wa silindrike.Ingano yacyo ikoreshwa nkumuyoboro wo gutanga amazi.Ikoreshwa cyane muri peteroli, imiti, ubuvuzi, ibiryo, inganda zoroheje, imashini n'ibikoresho ndetse n'indi miyoboro y'inganda n'ibice byubatswe.Tegereza.Imiyoboro y'icyuma idafite ibyuma bikozwe mu byuma birwanya aside kandi birwanya ubushyuhe, bishyuha, bigacumita, bingana, bikazunguruka, kandi bigacibwa.
