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Alpaka [æl'pɑːkə] n
gen. 德国银铜 50%,锌 25%,镍 25%
archit. 镍白铜 (铜 50%, 锌 25%, 镍 25%)
met. 镍白铜 (50Cu, 25Zn, 25Ni)
tech. 镍白铜
alpaka [æl'pɑːkə] n
space 白铜
textile 阿尔帕卡; 羊驼

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