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批准 设计 : 29 phrases in 9 subjects |
| Automobiles | 1 |
| Aviation | 16 |
| Bridge construction | 2 |
| Economy | 2 |
| Nautical | 2 |
| Project management | 1 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 3 |
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