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扩 气器 : 32 phrases in 9 subjects |
| Aerodynamics | 1 |
| Aviation | 6 |
| Combustion gas turbines | 1 |
| Electronics | 2 |
| General | 7 |
| Jet engines | 2 |
| Medical | 1 |
| Military | 2 |
| Technology | 10 |
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