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| English thesaurus | |||
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| APP | |||
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| Air traffic control service for arriving or departing controlled flights. | |||
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Approach Control : 28 phrases in 9 subjects |
| Aviation | 2 |
| Commerce | 4 |
| Communications | 3 |
| General | 1 |
| Meteorology | 2 |
| Municipal planning | 1 |
| Rail transport | 1 |
| Technology | 8 |
| Transport | 6 |