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零偏移 : 27 phrases in 9 subjects |
| Aviation | 1 |
| Electronics | 6 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Geophysics | 4 |
| Information technology | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 7 |
| Space | 2 |
| Technology | 3 |
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