Assuming the floating - debris ' movement is identical with the flow , it is suggested that the flow characteristics of the water particle should be used to represent the floating - debris ' movement in front of the hydropower station 假设漂浮物具有良好跟随性,即漂浮物与水流质点运动轨迹一致,通过分析水流质点的运动,得出漂浮物的运动情况。