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| 难熔氧化物; 耐火氧化物; 难熔【耐火】氧化物 | |||
| refractory oxide: 13 phrases in 5 subjects |
| Computers | 1 |
| Electronics | 4 |
| Metallurgy | 2 |
| Technology | 5 |
| Textile industry | 1 |
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