echolocation

柯林斯词典

echolocation /ˌɛkəʊləʊˈkeɪʃən/ (also echo-location)

• 1. N-UNCOUNT Echolocation is a system used by some animals to determine the position of an object by measuring how long it takes for an echo to return from the object. 回声定位[技术]

  Most bats navigate by echolocation. 大多数蝙蝠通过回声定位飞行。

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