stannum alloy

例句：

1. 1.The steel was made from stannum alloy, which is very strong and durable.
   这种钢是用斯塔纳合金制成的，非常坚固耐用。
2. 2. The engineer used stannum alloy to make the gears, which were highly precise.
   这位工程师用斯塔纳合金制作了齿轮，非常精确。
3. 3. The stannum alloy was used in the construction of bridges, which required high strength and durability.
   斯塔纳合金用于桥梁建设，需要高强度和耐久性。