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脉动喷气式发动机 : 41 phrases in 13 subjects |
| Air defense | 1 |
| Astronautics | 1 |
| Automobiles | 1 |
| Aviation | 6 |
| Combustion gas turbines | 1 |
| Construction | 1 |
| General | 5 |
| Mechanic engineering | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Skydiving | 5 |
| Space | 8 |
| Technology | 9 |
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