Sonar
01
声纳, 声学探测
a technology that uses sound waves to detect objects underwater or measure distances underwater
例子
Dolphins and bats use a natural form of sonar called echolocation to locate prey and avoid collisions.
海豚和蝙蝠使用一种称为回声定位的天然声纳形式来定位猎物并避免碰撞。



























