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| burnt ore; purple ore (【技】使用黄铁矿生产硫酸时产生的残渣。由于硫酸渣含有40% ~55%的铁，故可作为含铁原料使用。); pyrite residue | |||
| sulfuric acid residuum | |||
| 硫酸渣: 12 phrases in 5 subjects |
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