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| rough | |||
| crude ore; poor ore (石) | |||
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粗矿 : 37 phrases in 11 subjects |
| Architecture | 1 |
| Chemistry | 1 |
| Ecology | 1 |
| Engineering geology | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 4 |
| Geology | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 7 |
| Oil / petroleum | 1 |
| Technology | 18 |
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