| 单词 | beam approach |
| 释义 | > as lemmasbeam approach b. Aeronautics. A directional radio transmission used to guide aircraft or missiles; frequently attributive, as beam approach. ΘΚΠ society > communication > telecommunication > radio communications > [adjective] > type of wave > used to guide aircraft or missiles beam1927 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 society > communication > telecommunication > radio communications > [noun] > radio wave > types of > used to guide aircraft or missiles beam1927 1927 Sci. Amer. Jan. 32 Radio along the Airways. Invisible beams guide birdmen in flights between European cities. 1929 Aviation 28 Dec. 1277/1 A landing beam transmitter buried flush with the ground in the center of the field. 1929 Aviation 28 Dec. 1277/1 After finding the beam the pilot glides down it toward the field. 1933 K. Henney Radio Engin. Handbk. 537 The diminution of intensity as the airplane drops below the inclined axis is compensated by the increase of intensity due to approaching the beam transmitter. 1941 Tee Emm Oct. 8/1 The policy is that Beam Approach training shall be introduced..as equipment becomes available. 1949 A. R. Weyl Guided Missiles i. 26 The ‘beam-rider’ system in which the missile flies along a radar beam. 1958 Times 9 Oct. 10/2 It carries a warhead with proximity fuse and a beam guidance system. 1963 Oxf. Mag. 9 May 280/2 The Germans with their beam flying provided us with targets that would have been peculiarly favourable to aerial mine defence. < as lemmas |
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