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机动气流 : 31 phrases in 9 subjects |
| Architecture | 2 |
| Automobiles | 6 |
| Aviation | 4 |
| Electronics | 3 |
| Nautical | 1 |
| Skydiving | 1 |
| Space | 4 |
| Technology | 8 |
| Wind Energy | 2 |
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