Since we now have television and sonar, we are able to examine the bottom of the sea quite well.
由于我们现在有电视和声纳，我们就能够很好地研究海洋底部了。
2
A bottom detection method used in the multibeam bathymeter sonar is introduced. The method is based on the separate aperture method, which is associated with phase information.
介绍了一种建立在与相位信息相联系的分离孔径方法的基础上的、用于多波束测深声纳的海底探测方法。
3
In military engineering applications, identification of sea bottom types are vary important for match field location, low-frequency sonar distance forecast, and choosing the location for submarine.