单词longshore drift
un.: 沿岸漂移;海岸边的漂沙网络: 沿岸漂砂;沿岸飘移;沿岸沙粒
沿岸泥沙流:
the movement of sand, etc. along a beach caused by waves hitting the beach at an angle
海岸边的漂沙
沿岸漂移