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copper | |||
pure copper | |||
red brass | |||
Cu | |||
red bronze; red metal; rich low brass; rose copper; rosette copper | |||
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red brass (低锌) | |||
red brass |
红铜 : 51 phrases in 11 subjects |
Animal husbandry | 1 |
Biology | 1 |
Ceramics | 1 |
Earth sciences | 1 |
Exhibitions | 1 |
General | 7 |
Metallurgy | 13 |
Space | 1 |
Steel production | 1 |
Technology | 21 |
Textile industry | 3 |