cratering

英 ['kreɪtərɪŋ] 美 ['kreɪtərɪŋ]

• n. 磨顶槽

cratering的用法和样例：

例句

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