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采动系数 : 33 phrases in 11 subjects |
| Aviation | 3 |
| Business | 1 |
| Desert science | 2 |
| Earth sciences | 3 |
| Electronics | 9 |
| General | 1 |
| Geophysics | 6 |
| Rail transport | 1 |
| Space | 4 |
| Technology | 2 |
| Wind Energy | 1 |
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