Answer
Kuruhura umutwaro, cyangwa 'gushiraho', bibaho mugihe imihangayiko yimbere mugihe cyimpeshyi irenze igipimo cyibintu byoroshye mugihe cyambere cyambere cyo kwikuramo. Ibi bivamo kugabanuka guhoraho muburebure bwubusa. Kugirango hamenyekane imikorere ihamye mumurima, abayikora akenshi 'preset' cyangwa 'bakureho seti' kumasoko bayisunika muburebure bwabo bukomeye cyangwa gutandukana kwinshi mugihe cyo gukora. Ibi bitera ingirakamaro zisigaye zo kwikuramo imbaraga kuri fibre yo hanze. Nyuma yo guteganya, amasoko azakomeza guhora yikuramo-gutandukana mugihe gikurikiraho, mugihe impungenge zo gukora zitarenze imipaka yashizweho. Ibi nibyingenzi kubisobanuro byerekana preload aho imbaraga zihoraho zisabwa.