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vane 音标拼音: [v'en] n. 风向标,风信旗,变化不定的事物 风向标,风信旗,变化不定的事物 vane n 1: mechanical device attached to an elevated structure; rotates freely to show the direction of the wind [ synonym: { weathervane}, { weather vane}, { vane}, { wind vane}] 2: a fin attached to the tail of an arrow, bomb or missile in order to stabilize or guide it 3: flat surface that rotates and pushes against air or water [ synonym: { blade}, { vane}] 4: the flattened weblike part of a feather consisting of a series of barbs on either side of the shaft [ synonym: { vane}, { web}] Vane \ Vane\ ( v[= a] n), n. [ OE. & Prov. E. fane weathercock, banner, AS. fana a banner, flag; akin to D. vaan, G. fahne, OHG. fano cloth, gund fano flag, Icel. f[= a] ni, Sw. fana, Dan. fane, Goth. fana cloth, L. pannus, and perhaps to Gr. ph^ nos a web, phni` on a bobbin, spool. Cf. { Fanon}, { Pane} a compartment, panel.] [ 1913 Webster] [ 1913 Webster] 1. A contrivance attached to some elevated object for the purpose of showing which way the wind blows; a weathercock. It is usually a plate or strip of metal, or slip of wood, often cut into some fanciful form, and placed upon a perpendicular axis around which it moves freely. [ 1913 Webster] Aye undiscreet, and changing as a vane. -- Chaucer. [ 1913 Webster] 2. Any flat, extended surface attached to an axis and moved by the wind; as, the vane of a windmill; hence, a similar fixture of any form moved in or by water, air, or other fluid; as, the vane of a screw propeller, a fan blower, an anemometer, etc. [ 1913 Webster] 3. ( Zool.) The rhachis and web of a feather taken together. [ 1913 Webster] 4. One of the sights of a compass, quadrant, etc. [ 1913 Webster] { Vane of a leveling staff}. ( Surv.) Same as { Target}, 3. [ 1913 Webster]
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