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| 阿尔尼克铁镍铝系磁铁合金; 铝镍磁铁铁60% ~70%,镍 10% -20%,铝 1 % -20% | |||
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Alnic : 2 phrases in 2 subjects |
| Metallurgy | 1 |
| Technology | 1 |
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