Glossary entry (derived from question below)
English term or phrase:
blade passing frequency
Polish translation:
częstotliwość łopatkowa / przejściowa łopatki
English term
blade passing frequency
that the total noise level decreased 1 dBA when opening the damper. In the octave bands 125 and 250 where the blade passing frequency and the first harmonic are the level decreased.
Jest to raport z dźwiękochłonności dotyczący wentylatorów i kanałów wentylacyjnych. Dodam jeszcze, ze jest pisal to ktos ze Szwecji.
| 4 +2 | częstotliwość łopatkowa |
Arrakis
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Non-PRO (1): M.A.B.
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Proposed translations
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