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| duplex iron (【技】适合于碱性和酸性炼钢法使用的生铁。) | |||
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两 用铁 : 45 phrases in 9 subjects |
| Automobiles | 2 |
| Bridge construction | 12 |
| Business | 1 |
| General | 1 |
| Golf | 1 |
| Metallurgy | 3 |
| Oil / petroleum | 2 |
| Rail transport | 6 |
| Technology | 17 |
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