echolocation

【医】 回声测定

动词:echolocate 

ech.o.lo.ca.tion

n.（名词）
A sensory system in certain animals, such as bats and dolphins, in which usually high-pitched sounds are emitted and their echoes interpreted to determine the direction and distance of objects.
回声定位，回波定位：某些动物，如蝙蝠、海豚等的感觉系统，通常能发出高音频的声音并能根据回声来判断物体的方位及距离
Electronics A process for determining the location of objects by emitting sound waves and analyzing the waves reflected back to the sender by the object.Also called echo ranging
【电子学】 回声定位法，回波定位法：一种通过先发出声音，然后分析被物体反射回发送者的声波并决定物体方位的方法也作 echo ranging

【引伸】
ech.olocate.
v.（动词）