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venturi düüs, mille geomeetriat iseloomustavad suurused ja kasutustingimused on sellised, et voog on kriitiline, critical nozzle is a flow meter that can be used as a calibration standard for gas flow meters or any flow measurement device
kriitiline düüs . Metroloogia terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mea/kriitiline%20d%C3%BC%C3%BCs/1/est (06.08.2026)
