时均流速1. The velocity distribution inside and above the submerged vegetation can be divided into three zones from the bed surface to the water surface,The experiment results show that the mean velocity are increased humdrum,and then keep invariability,the velocity distribution reobey semi-...
空间平均流速5) time-average power flow 时间平均功率流 1. The substructure method was introduced to set up mathematical model of finite periodic composite structure,to solve its wave equation,and to derive its time-average power flows. 采用子结构法,建立了有限周期复合结构的数学模型,求出了数学模...