短語詞組短語mound d breakwater 堆石防波堤low rubble mound composite breakwater 低拋石基郃成防波堤high rubble mound composite breakwater 高拋石基郃成防波堤rock -mound breakwater 堆石防波堤mound -type breakwater [水運]斜坡式防波堤rubble mound breakwater 堆石防波堤;拋石防波堤rubble -mound breakwater 拋石防波堤rubble e mound breakwater 堆石防波堤 返回 mound breakwater