雷诺数 Traditional 雷諾數 Léi nuò shù 🔊 Reynolds number (ratio of inertial… + Review this word Meanings Léi nuò shù name 雷諾數 Reynolds number (ratio of inertial forces to viscous forces in fluid mechanics) Its characters 雷léithunderHSK 6诺nuòto consent数shùnumber; figureHSK 4