单词 | automatic direction finder |
释义 | > as lemmasautomatic direction finder automatic direction finder n. a navigational aid used in aircraft and ships which continuously and automatically displays the bearing of the nearest radio beacon; abbreviated ADF.Cf. radio direction finder n. at radio n. Compounds 3, which is not necessarily automatic. ΚΠ 1938 Sci. News Let. 22 Oct. 259/1 The pilot who wanders off the radio beam..will nevertheless not be lost if he is equipped with the newly-developed automatic direction finder. 1969 Amer. Math. Monthly 76 1013 We assume that the airplane is using ADF (automatic direction finder), so at all times the plane is pointed to the city of destination. 2001 Flying May 82/1 The automatic direction finder (ADF) is another useful navigation device though it too has fallen out of favor with the advent of loran and GPS. < as lemmas |
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