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| 铜孟合金 | |||
| 锰铜合金 | |||
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| 铜锰电阻合金 (12Mn, <3Fe,余量 Cu) | |||
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| 铜锰合金 | |||
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copper-manganese alloy : 4 phrases in 3 subjects |
| Metallurgy | 2 |
| Shipbuilding | 1 |
| Technology | 1 |
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