Foye xasabi naxan dangima ventilasion kui
F - Air duct cross-sectional form. Rectangle xa na mu a ra round.
D - Duct diameter.
X - Duct rectangle xa gboe.
Y - Duct rectangle xa gboe.
E - Foye xa sEmbE, sekondi keren kui.
Program sEmbE.
Foye xasabi naxan dangima ventilasion duct kui.