downwash velocity

例句：

1. 1.The downwash velocity of the airflowis a critical factor in determining the efficiencyof the cooling system.
   气流的下洗速度是决定冷却系统效率的关键因素。
2. 2.In this experiment, we measured the downwash velocity of the water droplets tounderstand their impact on the surrounding environment.
   在这个实验中，我们测量了水滴的下洗速度，以了解它们对周围环境的影响。
3. 3. Downwash velocity is influencedby factors such as temperature and humidity,which can affect the efficiency of the coolingsystem.
   下洗速度受到温度和湿度等因素的影响，这会影响冷却系统的效率。