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红色黄铜
met. red brass
steel. low brass
tech. red brass (含铜大于 80%的)
含铜大于80%的红色黄铜
tech. red metal
红色黄铜含铜>80%
tech. red metal
红色黄铜含铜高于80
met. red metal
红色〔低锌,高铜〕黄铜
met. red brass
红色黄 铜
: 6 phrases in 3 subjects
Ceramics1
General1
Metallurgy4