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形底 部 : 20 phrases in 9 subjects |
| Architecture | 1 |
| Drilling | 1 |
| Earth sciences | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Metallurgy | 2 |
| Rail transport | 1 |
| Securities | 1 |
| Swimming | 2 |
| Technology | 10 |
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