complex ferroalloy

例句：

1. 1.The steel industry uses complex ferroalloy to make high-strength steel.
   钢铁工业使用复杂合金制造高强度钢。
2. 2.The alloy was designed to resist corrosion and maintain its strength over time.
   这种合金设计用来抵抗腐蚀并保持其强度随时间而变化。
3. 3. The engineers used complex ferroalloy to create a new type of superconductor.
   工程师们使用复杂合金创造了一种新型超导体。