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tombak ['tɔmbæk] n
gen. 顿巴〔德国〕黄铜; 铜锌合金; 顿巴黄铜波纹管
oil 德国顿巴黄铜; 铜锌合金顿巴黄铜
tech. 含锌黄铜
Tombak ['tɔmbæk] n
met. 顿巴克黄铜; 德国黄铜 (67~ 75Cu, 10 ~ 20Zn, 1.75 ~ 5Si)

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