Mugero wa mutheo
Mugero wa tshipiḓa tsha duct
Fhethu ha fhasi
20
m
2
(
20000000
mm
2
)
Fhethu ha vent nthihi
0.012
m
2
(
12272
mm
2
)
Fhethu hothe ha dzi vent
0.061
m
2
(
61359
mm
2
)
Tshikalo tsha muya
5
zwithu
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