(a) North American Nautical = range light n.; (b) Aeronautics a radio beacon transmitting directional signals which can be used by aircraft to…
| 单词 | θ130013 |
| 释义 | the mind > attention and judgement > discovery > instrument for detection > [noun] > radar system > apparatus used in > transmitter (2) range beacon1852 (a) North American Nautical = range light n.; (b) Aeronautics a radio beacon transmitting directional signals which can be used by aircraft to… radar beacon1945 a radio transmitter that automatically transmits a return signal when it receives a signal from a radar transmitter; esp. one whose signal is… |
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