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研究和 工 程 : 40 phrases in 11 subjects |
| Air defense | 2 |
| Aviation | 10 |
| Business | 1 |
| Earth sciences | 14 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 1 |
| Navigation | 1 |
| Oil / petroleum | 1 |
| Space | 7 |
| United Kingdom | 1 |
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