soundings

例句：

1. 1.The submarine uses soundings to navigate through the ocean.
   潜艇使用声纳来在海洋中导航。
2. 2.The ship's captain ordered a thorough sounding of the harbor.
   船长下令对港口进行彻底的声纳探测。
3. 3.The research team conducted several soundings on the river's depth.
   研究团队对河流的深度进行了几次声纳测量。