这些波廷铜锌锡合金硬币的重量各不相同。
其穹顶覆盖着阳极氧化铝，而圆形建筑体则覆以钛锌锡。
The cupolas are covered with anodised aluminium and the globe with titanium zinc tin.
研究了真空蒸馏法分离废杂锌锡合金回收锌锡金属的工艺。
This paper discuss the technology of separating zinc-tin alloy to recover zinc and tin by vacuum distillation.
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