| 单词 |
radio marker beacon station |
| 释义 |
radio marker beacon station radio marker beacon station[′rād·ē·ō ′mär·kər ‚bē·kən ‚stā·shən] (navigation) Station marking a definite location on the ground as an aid to aircraft at altitude; the International Civil Aviation Organization beacons operate at a single frequency of 75 megahertz. |
| 随便看 |
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