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| ferroso | |||
| férrea aleación | |||
| férreo | |||
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ferrous : 105 phrases in 13 subjects |
| Agriculture | 1 |
| Chemistry | 33 |
| Coal | 2 |
| Dyalysis | 1 |
| Economics | 3 |
| Environment | 24 |
| Food industry | 6 |
| General | 1 |
| Health care | 5 |
| Industry | 4 |
| Information technology | 2 |
| Metallurgy | 17 |
| Technology | 6 |