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模拟 实验 室 : 19 phrases in 10 subjects |
| Aviation | 4 |
| Earth sciences | 1 |
| Ecology | 1 |
| Electronics | 1 |
| General | 1 |
| Geology | 1 |
| Mining | 1 |
| Space | 5 |
| Technology | 3 |
| United States | 1 |
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