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预载荷 : 33 phrases in 9 subjects |
| Automobiles | 3 |
| Bridge construction | 6 |
| Commerce | 1 |
| Engineering geology | 3 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Metallurgy | 2 |
| Rail transport | 1 |
| Technology | 14 |
| Wind Energy | 2 |
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