breakwater

They riprapped the breakwater with stone.

他们以乱石基巩固防波堤。

Back of the breakwater the dredger was working.

在防波堤后面挖泥船正在工作。

The actual breakwater itself will be built on a foundation of slag—a permeable byproduct of steel which will provide a habitat for aquatic wildlife in the lake.

事实上，防浪堤本身是建在矿渣（具有渗透性的钢铁的副产物）上的，这能为水中的生物营造良好的生活环境。