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| 低值氧化物 | |||
| 氧化低价某 | |||
| 低价氧化物 | |||
| 低氧化物 | |||
| 低价氧化物 | |||
| 底氧化物; 次氧化物 | |||
| suboxide: 16 phrases in 3 subjects |
| Chemistry | 5 |
| Metallurgy | 4 |
| Technology | 7 |
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