| 单词 | fan marker |
| 释义 | > as lemmasfan marker fan marker n. Aeronaut. a radio marker beacon that transmits a fan-shaped beam. 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 1948 Shell Aviation News CXXIV. 8/2 Written examinations are required on radio facilities in the New York area, including radio ranges, homing facilities, fan markers and let down procedures on the heavily congested La Guardia airport. < as lemmas |
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