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设计荷载 : 99 phrases in 18 subjects |
| Architecture | 1 |
| Automobiles | 8 |
| Aviation | 10 |
| Bridge construction | 4 |
| Chemistry | 2 |
| Commerce | 2 |
| Construction | 2 |
| Drilling | 1 |
| Earth sciences | 2 |
| Electronics | 3 |
| Engineering geology | 5 |
| Nautical | 5 |
| Navigation | 3 |
| Rail transport | 1 |
| Shipbuilding | 2 |
| Space | 7 |
| Technology | 37 |
| Wind Energy | 4 |
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