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| 矿灰: 65 phrases in 13 subjects |
| Agriculture | 1 |
| Architecture | 1 |
| Bridge construction | 1 |
| Desert science | 2 |
| Earth sciences | 1 |
| Engineering geology | 2 |
| General | 12 |
| Latin | 1 |
| Metallurgy | 8 |
| Steel production | 1 |
| Technology | 33 |
| Textile industry | 1 |
| Waste management | 1 |
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