Kubbada muraayadda midabka, dabcan, waxaa la sameeyaa iyadoo la isticmaalayo xalal dhalo midab leh, dhammaan noocyada tabaha ee dareeraha dhalaalayaa ma haystaan ​​waqti qaboojin ah oo lagu farsameeyo, sida gudaha dareeraha dhalada ee heerkulka sare ee walxaha midabka u adkaysta, ama isku dhafka dhowr. noocyada dareeraha galaaska midabka, ama dusha sare ee dareeraha dhalada oo leh qurxiyo midab leh. Taas ka dib, dareeraha galaaska ayaa si tartiib ah loo gooyaa isla cabbirka, ka dibna si tartiib ah u shiidi, xoqin wareega, ka dibna muraayadaha muraayadda ayaa ah muraayado midab leh.