① Volume flow rate, feem ntau hu ua lub ntim ntim los ntawm cov neeg siv khoom hauv tsev. Volume flow rate yog hais txog qhov ntim ntawm cov pa tawm los ntawm lub tshuab cua compressor hauv ib lub sijhawm ntawm qhov xav tau tso pa tawm, hloov mus rau hauv lub xeev kom tsawg.
② Chav tsev ntawm cov dej ntws yog: m3 / min (cubic meter / feeb) lossis L / min (litre / feeb), qhov twg 1m3 (cubic meter)=1000L (liter);
③ Feem ntau, feem ntau siv chav dej ntws yog m3 / min (cubic meter / feeb);
④ Volume flow rate kuj tseem hu ua cov ntim ntim lossis cov ntawv sau npe ntws hauv Suav teb.