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Sonar
01
声纳
a technology that uses sound waves to detect objects underwater or measure distances underwater
例子
The research team deployed sonar to explore the sunken shipwreck resting on the ocean bed.
Military submarines use advanced sonar systems for detecting enemy vessels and underwater mines.
The submarine navigates using sonar to map the ocean floor and detect potential obstacles.
Dolphins and bats use a natural form of sonar called echolocation to locate prey and avoid collisions.
