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物理解 : 23 phrases in 10 subjects |
| Agriculture | 2 |
| Aviation | 1 |
| Desert science | 1 |
| Earth sciences | 2 |
| Ecology | 1 |
| Engineering geology | 1 |
| General | 6 |
| Geophysics | 2 |
| Oil / petroleum | 4 |
| Technology | 3 |
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