cratering

英['kreɪtərɪŋ] 美['kreɪtərɪŋ]
  • n.磨顶槽
    1. A flat-bottomed, roughly circular volcanic crater of explosive origin that is often filled with water.
      小火山口一种底部平坦、大致呈圆形的火山爆发后形成的盛满水的低洼地
    2. A rim, as of a vessel, bell, or crater.
      边容器、铃和坑的边缘