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Aircraft
Any machine or device that is capable of atmospheric flight either by buoyancy or by the movement of air over its surfaces.
Industry: Aviation
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Aircraft
遠距離導航 (羅蘭)
Aviation; Aircraft
從兩個固定發射機信號的雙曲型線的位置由測量的同步脈衝的接待時間差別的電子導航系統。羅蘭-A 1750–1950 千赫頻率波段操作。羅蘭-C 和-D 100–110 千赫頻率波段操作。 ...