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| 冲压喷气发动机; 冲压式喷射发动机 | |||
| 冲压喷气式发动机 | |||
| 冲压式喷气发动机 | |||
| ramjet engine: 35 phrases in 5 subjects |
| Air defense | 1 |
| Aviation | 2 |
| Rail transport | 1 |
| Space | 29 |
| Technology | 2 |
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