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| scram jet (发动机气流在马赫数小于 1 时没有压缩，防止分解 (氧气、氮气、碳分子分解成原子)。气流在高超声下被压缩，燃料燃烧，允许在高超声速下工作。超声速燃烧冲压发动机工作开始于马赫数5〜7) | |||
| supersonic combustion ramjet | |||
| 超声速燃烧冲压 发动机: 10 phrases in 4 subjects |
| Air defense | 1 |
| Aviation | 3 |
| Space | 5 |
| Technology | 1 |
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