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| 三氧化二铁 | |||
| 二价铁; 氧化亚铁; 一氧化铁 | |||
| закись железа: 18 phrases in 5 subjects |
| Chemistry | 3 |
| Electronics | 1 |
| General | 5 |
| Medical | 3 |
| Technology | 6 |
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