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平面流 : 49 phrases in 12 subjects |
| Aerodynamics | 2 |
| Aerohydrodynamics | 2 |
| Aviation | 2 |
| Construction | 1 |
| General | 9 |
| Geology | 1 |
| Military | 1 |
| Nanotechnology | 1 |
| Nautical | 1 |
| Oilfields | 1 |
| Physics | 1 |
| Technology | 27 |
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