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空间模拟 : 55 phrases in 9 subjects |
| Aviation | 6 |
| Construction | 1 |
| Earth sciences | 2 |
| Electronics | 7 |
| Geophysics | 1 |
| Refrigeration | 1 |
| Space | 25 |
| Technology | 11 |
| Telecommunications | 1 |
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