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air navigation system | |
avia. Canada | système de navigation aérienne |
standards and procedures | |
fish.farm. | normes et procédures |
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système de navigation aérienne |
Air Navigation Systems : 32 phrases in 6 subjects |
Astronautics | 1 |
Aviation | 25 |
Law | 1 |
Natural sciences | 1 |
Technology | 1 |
Transport | 3 |