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包长度 : 20 phrases in 8 subjects |
| Explosives and Explosive Ordnance Disposal | 4 |
| Metallurgy | 3 |
| Project management | 2 |
| Shipbuilding | 2 |
| Space | 3 |
| Technology | 4 |
| Telecommunications | 1 |
| Textile industry | 1 |
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