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11. | Civil Aviation Training College |
| 民航训练学院 |
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12. | CAO = Civil Aviation Organization |
| 民航组织 |
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13. | Arab Civil Aviation Council |
| 阿拉伯民航理事会 |
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14. | International Civil Aviation Organization |
| 国际民间航空组织 |
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15. | Arab Civil Aviation Organization |
| 阿拉伯民航组织 |
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16. | Civil Aviation Training Centre |
| 民用航空训练中心(民航训练中心) |
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17. | bird control [civil aviation] |
| 雀鸟控制〔民航〕 |
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18. | Civil Aviation Wireless Associatio |
| 民航无线电协会 |
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19. | African Civil Aviation Commission |
| 非洲民用航空委员会(非洲民航会) |
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20. | Directorate of Civil Aviation |
| 民用航空局(民航局) |
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