That flaps. Applied spec. to the upward and downward movement of the wings of birds and, formerly, of flying machines. So flapping flight, etc.
单词 | θ207739 |
释义 | society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > [adjective] > types of wing (10) flappinga1857 That flaps. Applied spec. to the upward and downward movement of the wings of birds and, formerly, of flying machines. So flapping flight, etc. cambered1909 swept-back1914 (of a wing) having its leading edge angled backwards (cf. sweepback n. at sweep-, comb._form affix 3 and delta wing n. at delta, n. compounds 2)… slotted1921 Having a slot or slots. spec. in Aeronautics: cf. slot, n.2 2d. Also, slotted armature (Electrical Engineering), an armature having slots or grooves… crustacean1928 Designating an aeroplane wing in which stresses are carried by the outer skin (in the manner of a crustacean's exoskeleton) rather than by struts… cranked1939 Aeronautics. Of an aircraft wing or an aircraft with such a wing: see quot. 1959. unswept1946 Of the wing of an aircraft: not swept-back (see swept, adj. compounds), not having sweepback or sweep-forward (see sweep-, comb._form affix 3). variable sweep1954 sweep (sense 15) that can be varied during flight according to requirements; usually attributive. Gothic1959 A term for the style of architecture prevalent in Western Europe from the twelfth to the sixteenth century, of which the chief characteristic is… ogival1962 Aeronautics. Of an aircraft wing: having the shape of an ogee in plan view. |
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