“underwater acoustic countermeasure”的概念、定义、翻译、参考文献-科学参考

单词	underwater acoustic countermeasure
释义	underwater acoustic countermeasure Encyclopedia 理学水声学释 underwater acoustic countermeasure水声对抗用声学方法降低对水声探测或水声通信的效果，使对方难以发现自身的存在和位置，以及降低对方通信能力和可靠性的技术。
随便看	principal line principal line of photograph principally analytic set principally polarized variety principal mapping principal matrix principal maximum principal measure principal minimum principal minor principal minor array principal minor determinant principal module principal moment principal moment of inertia principal net of a mapping principal net of the flow principal neutral point principal nilpotent orbit principal norm principal normal principal normal complex principal normal form principal normal line principal normal plane

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