| 单词 | landing beam |
| 释义 | > as lemmaslanding beam landing beam n. Aeronautics a radio beam to guide aircraft when landing. ΘΚΠ society > travel > air or space travel > action of flying (in) aircraft > navigation of course of aircraft > [noun] > radio beam or beacon beacon1919 localizer1922 beam1927 landing beam1929 marker beacon1929 fan marker1948 1929 Aviation 28 Dec. 1277/1 A landing beam transmitter buried flush with the ground in the center of the field. 1933 Flight 1 June 524 A pointer on a simple instrument showed him any deviation from the landing beam. 1945 Aeronautics Feb. 30 (heading) Diagram showing the aircraft..entering the landing beam. < as lemmas |
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