Walleyada qoyan; Dn 3600 & 1800

Adeegso xoog farsamo oo xoog leh, qalab wax soo saar oo dhammaystiran si aad ula kulanto mid ka mid ah shuruudahaaga, injineeradaada xirfadeed iyo iibka ganacsiga shisheeyaha ayaa bixin doona adeegyo lagu qanco, tht valve!