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单词 angle of incidence
释义

WordReference Random House Unabridged Dictionary of American English © 2024
an′gle of in′cidence, 
    1. Optics, Physics, OpticsAlso called incidence. the angle that a straight line, ray of light, etc., meeting a surface, makes with a normal to the surface at the point of meeting.
    2. Aeronautics(on an airplane) the angle, usually fixed, between a wing or tail root chord and the axis of the fuselage.
    3. [Chiefly Brit.]See angle of attack (def. 1).
    • 1620–30

Collins Concise English Dictionary © HarperCollins Publishers::
angle of incidence n
  1. the angle that a line or beam of radiation makes with the normal to the surface at the point of incidence
  2. Also called: rigging angle of incidence the angle between the chord line of an aircraft wing or tailplane and the aircraft's longitudinal axis
WordReference Random House Unabridged Dictionary of American English © 2024
an′gle of attack′, 
    1. AeronauticsAlso called,[esp. Brit.,] angle of incidence. the acute angle between the chord of an aircraft wing or other airfoil and the direction of the relative wind.
    2. Rail Transportthe angular attitude of a wheel flange to the rail, esp. on curves.
    • 1905–10
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更新时间：2026/6/18 17:15:57