Umuyoboro wibyuma ukoreshwa mugutanga amazi nifu yifu, guhanahana ubushyuhe, gukora imashini zikoreshwa nibikoresho, nibikoresho byubukungu. Imiterere yubwubatsi hamwe nicyuma, inkingi nubufasha bwa mashini, birashobora kugabanya uburemere, kuzigama ibyuma 20 ~ 40%, kandi birashobora kubona ubwubatsi bwimashini hamwe ninganda zikora ibyuma. Ikiraro cyumuhanda ntigishobora kuzigama ibyuma gusa, koroshya ubwubatsi, kandi kirashobora kugabanya cyane agace kegeranye, kuzigama ishoramari no kubungabunga.
Igihe cyo kohereza: Jun-02-2017
