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| Национальный совет по безопасности на транспорте США (leahengzell) | |||
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National Safety Transportation Board : 10 phrases in 10 subjects |
| American usage, not spelling | 1 |
| Aviation | 1 |
| Aviation medicine | 1 |
| Economy | 1 |
| Energy industry | 1 |
| Law | 1 |
| Medical | 1 |
| Technology | 1 |
| Transport | 1 |
| United States | 1 |
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