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掺质 : 51 phrases in 8 subjects |
| Architecture | 1 |
| Electronics | 25 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 5 |
| Hydroelectric power stations | 1 |
| Metallurgy | 2 |
| Space | 2 |
| Technology | 14 |
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