Maaddada xannibaadda sare ee aadka u fiican waa in la kordhiyo nolosha shelf ee gunta ballaaran waxay u fiican tahay in la istaago. Daboolka dib loo isticmaali karo wuxuu ku habboon yahay dareeraha. Qalabka heerkulka sare ee shaaha ama caanaha.
Qalabka xayndaabka sare ee aadka u fiican ayaa ah in la kordhiyo nolosha shelf ee hoose ee ballaaran ayaa u fiican in la istaago. daboolka xabkaha dib loo isticmaali karo ayaa ku habboon dareeraha.