ternary alloy steel

例句：

1. 1.The new ternary alloy steel is stronger and more durable than the old one.
   这种新型三元合金钢比旧的更强大、更耐用。
2. 2. The engineers used ternary alloy steel to make the machine parts.
   工程师们用三元合金钢制造了机器零件。
3. 3. The ternary alloy steel was used in the construction of the bridge.
   三元合金钢被用于建造这座桥。