deep-sea velocimeter

例句：

1. 1.The deep-sea velocimeter was used to measure the speed of the ocean currents.
   深海测速仪被用来测量海洋洋流的速度。
2. 2.The scientists used the deep-sea velocimeter to study the movement of the seafloor.
   科学家们使用深海测速仪来研究海底的移动。
3. 3. The deep-sea velocimeter helped us understand the complex patterns of ocean currents.
   深海测速仪帮助我们理解了复杂的海洋洋流模式。