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高 MgO 耐火材料 : 35 phrases in 8 subjects |
| Architecture | 1 |
| Ecology | 1 |
| General | 2 |
| Hydroelectric power stations | 1 |
| Latin | 1 |
| Metallurgy | 19 |
| Steel production | 2 |
| Technology | 8 |
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