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最大荷载 : 67 phrases in 20 subjects |
| Agriculture | 1 |
| Automobiles | 7 |
| Aviation | 4 |
| Bridge construction | 2 |
| Chemistry | 1 |
| Commerce | 1 |
| Drilling | 2 |
| Economy | 1 |
| Electronics | 1 |
| Engineering geology | 3 |
| General | 2 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Oil / petroleum | 7 |
| Space | 4 |
| Technology | 25 |
| Transport | 1 |
| Welding | 1 |
| Wind Energy | 1 |
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