seafloor發音名詞1海底、海床Scientists used sonar to map the seafloor near the volcano.科學家利用聲納繪製火山附近的海底地形。2海底地殼、洋底地質學New crust forms as the seafloor spreads along the ridge.海床沿著中洋脊擴張時會生成新的地殼。