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| 风道; 风路 | |||
| 大气路径; 航线 | |||
| air path: 11 phrases in 7 subjects |
| Aviation | 2 |
| Electric machinery | 1 |
| Physics | 1 |
| Scuba diving | 1 |
| Space | 3 |
| Technology | 2 |
| Telecommunications | 1 |
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