Ukubalwa kwethamo lomoya odlula ohlelweni lokungena komoya
F - Ukwakheka okuyingxenye komsele. Unxande noma uyindilinga.
D - Ububanzi be-duct.
X - Ububanzi be-rectangular duct.
Y - Ukuphakama kwe-rectangular duct.
E - Ijubane lomoya, umzuzwana.
Izici.
Ukubalwa kwethamo lomoya odlula eweni lokungena komoya.