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曲身 : 15 phrases in 8 subjects |
| Automobiles | 3 |
| Aviation | 1 |
| Drilling | 2 |
| Engineering geology | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Oil / petroleum | 3 |
| Technology | 1 |
| Textile industry | 3 |
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