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| course beacon; localizer | |||
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| localizer beacon; localizer | |||
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航向信标 : 47 phrases in 10 subjects |
| Air defense | 2 |
| Aviation | 26 |
| Communications | 1 |
| Electronics | 2 |
| General | 1 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Space | 3 |
| Technology | 9 |
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