MEESHA 1.Our mashiinada duubka duuban ma aha oo kaliya gariiradda laakiin sidoo kale koorta kartaa alaabta 2. Mashiinka duubista sibidhkayaga ayaa rogi kara birta wareega wareega kuwaas oo tilmaamaya φ 6, φ 8, φ 10 iyo wixii la mid ah. 3. dhidibka sare ee mishiinka duubka duuban si sahal ah ayaa loo soo saari karaa si loo soo saaro qaybta shaqada ee la warshadeeyay.
