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| 导航信标波束 | |||
| 航向信标波束; 航向〔无线电〕信标波束; 无线电指向信标波束 | |||
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луч курсового радиомаяка : 15 phrases in 3 subjects |
| Aviation | 1 |
| General | 2 |
| Technology | 12 |
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