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| 民用航空管理局美国商业部所属的 | |||
| 民航管理局; 美国民用航空管理局; 民用航空署 | |||
| 国内航空管理局 | |||
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| 美国民用航空管理局 | |||
| English thesaurus | |||
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| CAA | |||
| CAA (US) | |||
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| CAA (USA Vosoni) | |||
| Civil Aeronautics Administration: 5 phrases in 5 subjects |
| Aviation | 1 |
| Desert science | 1 |
| General | 1 |
| Soil science | 1 |
| Technology | 1 |
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