spˈeɪs vəlˈɑːsᵻɾi kˈɛmɪstɹi, ðə ɹᵻlˈeɪʃən bᵻtwˌiːn vˌɑːljuːmˈɛtɹɪk flˈoʊ ɹˈeɪt ænd ɹɪˈæktɚ vˈɑːljuːm ɪn ɐ kˈɛmɪkəl ɹɪˈæktɚ
Space velocity (chemistry), the relation between volumetric flow rate and reactor volume in a chemical reactor