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模型方程 : 39 phrases in 14 subjects |
| Aviation | 1 |
| Business | 11 |
| Chemistry | 1 |
| Earth sciences | 4 |
| Ecology | 1 |
| Economy | 2 |
| Electronics | 1 |
| Mathematics | 4 |
| Mining | 1 |
| Oil / petroleum | 1 |
| Rail transport | 1 |
| Space | 3 |
| Statistics | 1 |
| Technology | 7 |
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