also known as sonar
也被称为声纳
以上为机器翻译结果,长、整句建议使用 人工翻译 。
As be known, it is the base work for sonar designer to study beam pattern, and also make very important actions in naval tactics.
声纳指向性研究是声纳设计的基础,同时也是影响声纳战术运用的重要环节。
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