On the other hand , foreshores are the most drastic area of beach . The analysis of high-frequency beach oscillation in the swash zone indicated that beach face oscillation had several different frequency periods .
同时,海滩前滨由于冲流作用是海滩最活跃的区域,冲流带海滩高频振动分析显示出滩面存在多个频段的周期振动。