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Birta birta ah ee dib loo habeeyey
Taranbirta birta ahwaa nooc ka mid ah birta xoogga sare leh oo leh sifooyin farsamo oo aad u fiican, kaas oo buuxin kara shuruudaha xoogga injineernimada dhismaha. Intaa waxaa dheer, dusha sare ee birta birta ah ayaa si gaar ah loo daaweeyaa, caabbinta daxalka ayaa sidoo kale ka sii fiican, taas oo hubin karta in birta birta aan la daxaleynin inta lagu jiro isticmaalka muddada dheer.
