| Subject | English | French |
| earth.sc., mech.eng. | critical flow | régime critique |
| hydr. | critical flow | courant critique |
| nat.sc. | critical flow | écoulement critique |
| life.sc., agric. | critical flow depth | tirant d'eau critique |
| tech. | critical flow measurement | mesure de débit critique |
| earth.sc. | critical flow velocity | vitesse critique de flux |
| tech., chem., el. | critical flow venturi | tube Venturi à débit critique |
| tech., chem., el. | critical flow venturi | tuyère sonique |
| tech., chem., el. | critical flow venturi | venturi à écoulement critique |
| tech., chem., el. | critical flow venturi | tuyère à écoulement sonique au sol |
| tech., chem., el. | critical flow venturi | tube de Venturi à écoulement critique |
| tech., chem., el. | critical flow venturi | Venturi-tuyère sonique |
| transp. | critical-flow venturi | tube de Venturi à écoulement critique |
| construct. | minimum critical flow rate of sewage waters | vitesse critique minimale des eaux d'égouts |
| tech. | sub-critical flow | écoulement tranquille |
| earth.sc. | sub-critical flow | écoulement fluvial |
| nat.sc. | sub-critical flow | écoulement de type fluvial |
| tech. | sub-critical flow | régime fluvial |
| earth.sc. | super critical flow | écoulement torrentiel |
| tech. | super-critical flow | régime torrentiel |
| tech. | super-critical flow | régime supercritique |
| phys.sc. | upper critical velocity at which flow changes abruptly from laminar to turbulent | vitesse critique supérieure |