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偏微 分 : 45 phrases in 16 subjects |
| Agriculture | 1 |
| Aviation | 4 |
| Bridge construction | 3 |
| Business | 4 |
| Earth sciences | 2 |
| Economy | 2 |
| Electronics | 4 |
| Engineering geology | 1 |
| Explosives and Explosive Ordnance Disposal | 2 |
| General | 3 |
| Geophysics | 1 |
| Mathematics | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 2 |
| Space | 1 |
| Technology | 13 |
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