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双子星飞船
| 稳定性改进
| 计划
| 双子星飞船 | |
| avia. | Gemini |
| 稳定性改进 | |
| tech. | stability improvement |
| 4-H计划 | |
| agric. | 4-H project |
| 计划 | |
| environ. | plan |
| hydroel.st. | planning; program; scheme; plan |
| sport. | programme |
| |||
| Gemini (美国载人飞船) | |||
| Gemini spacecraft | |||
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双子星飞船 : 16 phrases in 4 subjects |
| Aviation | 1 |
| Electronics | 3 |
| Space | 4 |
| United States | 8 |
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