Much of that echolocation sound is beyond the range of the human ear. But to bats, it's as loud as a jet airplane.
这些回声人类是听不到的，但对蝙蝠来说，却是真正的“如雷贯耳”。
Echolocation is pretty self-explanatory; using echoes reflected by sound waves to locate things.
回声定位是比较不解自明的；利用声波反射的回声来定位物体。
Echolocation, the active use of sonar along with special morphological and physiological adaptations, allows bats to "see" the world with sound.
主动应用声纳并与特殊形态学和生理学调节结合在一起的回声定位，使蝙蝠能用声音来“看”这个世界。
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