| 单词 |
parafoil |
| 释义 |
parafoil|ˈpærəfɔɪl|
Also para-foil.
[f. para-3 + aerofoil.]
A structure of fabric designed to function as both a parachute and an aerofoil, providing lift that enables the wearer to glide.
1967N.Y. Times 13 Aug. 15 A revolutionary parachute invention..known as the para-foil, would enable pilots bailing out over enemy territory to glide like birds until they reached safety. 1968Sunday Times 28 Sept. 5/1 Air fills the cells of his parafoil and flows over the upper surface, creating ‘lift’, as with an aeroplane. 1975Sci. Amer. Mar. 122/3 A major breakthrough was the invention of an inflatable multicell airfoil of fabric by D. C. Jalbert of Boca Raton, Fla... It is called the Para-Foil... Its shape in the form of a rigid, low-speed wing, is maintained entirely by air that enters openings at the leading edge to build up internal pressure. On landing the Para-Foil..can be collapsed into a manageable bundle of lines and cloth. One can also jump with it from an aeroplane. 1976Listener 8 July 30/3 We sent up a parafoil instead, an amazing American invention without any rigid structure, a mixture of balloon, parachute, aerofoil and kite, which instantly climbs to the permitted height of 200 feet. |
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