echolocation

音標發(fā)音

Most bats navigate by echolocation.
大多數(shù)蝙蝠靠回聲定位來飛行。
Most bats produce echolocation sounds by contracting their larynx.
大多數(shù)蝙蝠通過收縮喉嚨所發(fā)出的聲音實現(xiàn)回聲定位.
Some bats have specialized structures for emitting echolocation calls.
一些蝙蝠已經(jīng)把用于發(fā)出回聲定位叫聲的結(jié)構(gòu)專門化了.
Most bats navigate by echolocation.
大多數(shù)蝙蝠靠回聲定位來飛行。
Most bats produce echolocation sounds by contracting their larynx.
大多數(shù)蝙蝠通過收縮喉嚨所發(fā)出的聲音實現(xiàn)回聲定位.

a process in which animals, for example bats (= small animals with wings that fly at night), find their way in the dark by producing sound waves that echo (= are heard again) when they are reflected off an object

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.