| 单词 | pitch control |
| 释义 | > as lemmaspitch control pitch control n. Aeronautics control of the pitch of an aircraft's propellers or (esp.) a helicopter's rotors; apparatus for this; (also) control of the pitching motion of an aircraft. ΘΚΠ society > travel > air or space travel > action of flying (in) aircraft > specific flying operations or procedures > [noun] > control of pitching motion pitch control1930 society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > controls and instruments > [noun] > controls > devices to control altitude, attitude, or motion puff pipe1894 altitude control1910 pitch control1930 jet flap1955 roller1959 society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > means of propulsion > [noun] > aircraft engine > propeller > pitch pitch angle1902 adjustable pitch1909 pitch control1930 pitch1944 1930 Key West (Florida) Citizen 15 Oct. 1/4 (caption) Rocker arm—the heart of the pitch control. 1944 W. C. Nelson Airplane Propeller Princ. iv. 89 Various types of automatic pitch control requiring no attention from the pilot have been devised. 1974 Encycl. Brit. Macropædia I. 373/1 Pitch control is obtained by means of movable flaps (elevators) hinged to the trailing edge of the stabilizer. 1995 News & Advance (Lynchburg, Virginia) 25 June b1/1 The crash had been caused by a crack in the helicopter's pitch control horn. < as lemmas |
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