Bats are the only mammals to have wings and to achieve sustained flight.
蝙蝠是唯一有翅膀且能持续飞行
哺
。
Bats are the only mammals to have wings and to achieve sustained flight.
蝙蝠是唯一有翅膀且能持续飞行
哺
。
The mantid ear -- a single slit -- is sensitive to the ultrasonic "pings" emitted by hunting bats.
螳螂耳朵只有一条裂缝,对于蝙蝠发出
超
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.
斯佩丁和同事们认为,独特
气
签字后,蝙蝠
翅膀所造成不同
机械操作,
upstroke
wingbeat 。
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