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气球 探测 : 40 phrases in 13 subjects |
| Agriculture | 1 |
| Aviation | 3 |
| Earth sciences | 5 |
| Ecology | 1 |
| Electronics | 2 |
| French | 1 |
| General | 4 |
| Natural sciences | 1 |
| Oil / petroleum | 1 |
| Skydiving | 1 |
| Space | 8 |
| Technology | 9 |
| Wind Energy | 3 |
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