Heterogeneous metals

• 异种金属

Heterogeneous metals的用法和样例：

例句

1. Honing is a processing method of metals.
   珩磨是一种金属加工方法。
2. Brass is an alloy composed of two metals, zinc and copper.
   黄铜是由两种金属锌和铜所组成的合金。