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| |||
| airborne sound | |||
| aerial reconnaissance | |||
| aerial exploration | |||
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空中探测 : 15 phrases in 10 subjects |
| Agriculture | 1 |
| Air defense | 1 |
| Aviation | 3 |
| Earth sciences | 1 |
| Electronics | 1 |
| General | 2 |
| International trade | 1 |
| Oil / petroleum | 1 |
| Space | 3 |
| Technology | 1 |
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