Fundamentum drawing
sectione sorte ductus
FUNDAMENTUM area
20
m
2
(
20000000
mm
2
)
Area unius vent
0.012
m
2
(
12272
mm
2
)
Summa area spiramenta
0.061
m
2
(
61359
mm
2
)
Moles aeris
5
quam at pede
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