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| base metals (指贵金属及稀有金属以外的主要工业用有色金属，如铜、铅、锡、锌、铝和镍等) | |||
| basic metal | |||
| mother metal | |||
| parent metal | |||
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| parent metal | |||
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基本金 属 : 7 phrases in 6 subjects |
| Business | 1 |
| Economy | 1 |
| Electronics | 1 |
| Metallurgy | 2 |
| Technology | 1 |
| Welding | 1 |
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