aero·foil /ˈærəˌfɔɪl, ˈɛr-/
空氣動力面; 機翼; 翼型
A·ër·o·foil n. A plane or arched surface for sustaining bodies by its movement through the air; a spread wing, as of a bird.
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aerofoil
n : a device that provides reactive force when in motion
relative to the surrounding air; can lift or control a
plane in flight [syn: airfoil, control surface, surface]