蝙蝠的

Bats are the only mammals to have wings and to achieve sustained flight.

蝙蝠是唯一的有翅膀且能持续飞行的哺乳动物。

The mantid ear -- a single slit -- is sensitive to the ultrasonic "pings" emitted by hunting bats.

螳螂的耳朵只有一条裂缝，对于蝙蝠发出的超声波非常敏感。

Spedding and his colleagues think that the unique aerodynamic wake signatures of bat wings are caused by different mechanical operations in the upstroke of the wingbeat.

斯佩丁和的同事们认为，独特的气动签字后，蝙蝠的翅膀所造成不同的机械操作，在upstroke的wingbeat 。