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| 公开/私有: | 公开 私有 |
- 液体推进剂火箭发动机 (9)
- 研究 (5)
- 固体推进剂火箭发动机 (3)
- liquid propellant rocket engines (2)
- rocket engines (2)
- rockets (aeronautics) (2)
- 教材 (2)
- airplanes (1)
- atmosphere, upper (1)
- combustion (1)
- failure analysis (engineering) (1)
- fault location (engineering) (1)
- jet propulsion (1)
- liquid propellant rockets (1)
- reliability (1)
- rocket observations (1)
- rocketry (1)
- 发动机 (1)
- 喷油器 (1)
- 完整性 (1)
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