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横 向组 : 18 phrases in 8 subjects |
| Aviation | 1 |
| Business | 3 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Geophysics | 1 |
| Oil / petroleum | 1 |
| Rail transport | 3 |
| Technology | 6 |
| Textile industry | 1 |
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