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空中管制 : 216 phrases in 12 subjects |
| Air defense | 16 |
| Aviation | 139 |
| Business | 1 |
| China | 2 |
| Electronics | 28 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 9 |
| Management | 1 |
| Navigation | 1 |
| Space | 9 |
| Technology | 8 |
| United Kingdom | 1 |
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