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| Skylab | |||
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天空实验" : 45 phrases in 9 subjects |
| Air defense | 1 |
| Aviation | 10 |
| Earth sciences | 2 |
| Electronics | 3 |
| Military | 1 |
| Remote sensing | 1 |
| Space | 19 |
| Technology | 3 |
| United States | 5 |
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