air flow velocity meaning in English

气流速度

Experimental measurement of air flow velocity fluctuation of wind - sand flux
风沙流中风速脉动的实验测量
The unsteady . flow theory is used for calculate air flow velocity and one - dimension unsteady convection - diffusion model is used for calculate pollutant concentration ( called unsteady theory model in general , utm ) , and a new tunnel control method based on utm and neural network model is developed
本文首次采用更符合实际情况的隧道气流?维非恒定流理论和污染物浓度?维非恒定对流扩散模型(统称非恒定流理论模型)进行隧道通风控制方法的研究，并提出了一套基于非恒定流理论和神经网络模型的新的隧道通风控制方法。