Iyi nzu y'amagorofa abiri ishobora kwaguka ifite amababa abiri yongera gusobanura uburyo bwo kubaho bworoshye—yakozwe mu bikoresho biramba kandi bitangiza ibidukikije (ifite inyuma nziza y'ibiti n'icyuma cy'umukara), ihuza ubwiza bugezweho n'imikorere ifatika.
Iyo yaguwe neza, igishushanyo mbonera cy’amababa abiri gifungura umwanya w’inyongera mu nzu/hanze: igorofa yo hasi iraguka kugira ngo itange ahantu heza ho kuba, igikoni, cyangwa ibiro byo mu rugo, mu gihe igorofa ya kabiri ifite icyumba cyihariye cyo kuraramo + ibaraza rifunguye (rikwiriye kwishimira ibidukikije). Iyo ipfunditse, iba nto bihagije kugira ngo yorohereze gutwara no guteranya byihuse aho hantu (nta buryo bworoshye bwo kubaka busabwa).
Ni nziza cyane ku mazu y’abashyitsi yo mu gikari, mu mazu yo guturamo ari kure, cyangwa ahantu ho gutura by’agateganyo—inyubako yayo idashobora kwihanganira ikirere (ikwiriye ikirere gitandukanye) hamwe n’amadirishya manini kuva hasi kugeza hejuru (imbere huzuye amazi hamwe n’urumuri rusanzwe) bituma iba nziza kandi ikora neza. Ihuza amakontenari yo mu nganda n’imyambaro myiza kandi igezweho, iyi nzu ishobora kwaguka ihuza imikorere myiza y’ahantu n’ihumure.
