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| balise de signalisation | |||
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| balise de signalisation; balisage de seuil; feux d'approche; phares d'approche; feux de seuil | |||
| feux de seuil (аэродрома) | |||
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входной огонь : 4 phrases in 2 subjects |
| Aviation | 3 |
| Hydraulic engineering | 1 |
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