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。

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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。

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In the littoral environment, the bottom scattering is one of the most important factors for limiting the performance of active sonar.

在浅海环境中，海底散射是影响主动声纳性能的最主要因素之一。

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