When the object underwater reflects the sound wave, we can clearly see its shape in the form of a 3-dimensional image.

当水下物体反射声波时，我们可以清楚地看到它的三维图像。

youdao

When the object underwater reflects the sound wave, we can clearly see its shape in the form of a 3-dimensional image.

当水下物体反射声波时，我们可以清楚地看到它的三维图像。

youdao