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| 含锌锡的铜铅合金 | |||
| 有色玻璃; 坩埚制玻璃; 铸铁; 铜铅合金; 锅铁; 低级黄铜; 锅罐铸铁 | |||
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| 波特低级黄铜 (Zn Sn 铜铅合金) | |||
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pot metal : 5 phrases in 3 subjects |
| Architecture | 1 |
| Construction | 1 |
| Technology | 3 |
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