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裸 线 : 55 phrases in 13 subjects |
| Aviation | 6 |
| Cables and cable production | 2 |
| Drilling | 1 |
| Electric machinery | 13 |
| Electronics | 4 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Geophysics | 1 |
| Hydroelectric power stations | 3 |
| Metallurgy | 5 |
| Oil / petroleum | 1 |
| Space | 1 |
| Technology | 14 |
| Telecommunications | 2 |
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