哨声被认为是识别的声音，就像名字一样，而咔嚓声则是用来导航和回波定位寻找猎物。

Whistles are thought to be identification sounds, like names, while clicks are used to navigate and to find prey with echolocation.

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分析了“欠采样”成对回波和“速度失配”成对回波的形成机理，给出了成对回波定位和强度的通用计算公式。

The reasons of the paired false target echoes are analyzed and the paired echoes are divided into two types, one is called "undersampled type" and anather, "velocity mismatched type".

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蝙蝠是唯一会飞的哺乳动物，进化程度很高，能够在一片漆黑中精确定位一只飞虫的位置，并利用回波定位准确地从空中捕捉。

Bats are the only mammal capable of flying and are so highly evolved to be capable of pinpointing a single insect flying in the pitch black and plucking it out of the air using echo location.

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