top-side sounder

例句：

1. 1. The top-side sounder was used to detect underwater objects.
   顶侧声纳被用来探测水下物体。
2. 2. The top-side sounder detected a submarine in the area.
   顶侧声纳在该地区探测到了一艘潜艇。
3. 3. The top-side sounder helped us locate the lost treasure.
   顶侧声纳帮助我们找到了丢失的宝藏。