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性能说明 : 20 phrases in 9 subjects |
| Aviation | 5 |
| Business | 1 |
| Electronics | 2 |
| Information technology | 2 |
| Metallurgy | 1 |
| Project management | 1 |
| Shipbuilding | 4 |
| Space | 2 |
| Technology | 2 |
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