Doorka saxanka ilaalinta hoose ee baarka hore ee gaariga: 1, si looga hortago in walxaha yaryar ay ku daadanayaan qaybta matoorka inta lagu jiro wadista, taasoo waxyeello u geysanaysa matoorka, ama in la taabto digsiga saliidda matoorka marka la jiidayo salka, taasoo saameynaysa shaqada caadiga ah ee matoorka, iyadoo la ilaalinayo qaybta matoorka nadiifka ah; 2, marka la socdo, waxay ka hortagi kartaa in biyuhu ku daadanayaan qaybta matoorka, waxayna ka hortagi kartaa qaybta korontada inay biyuhu qoyaan oo ay dhibaato keenaan.
