extra-super duralumin alloy

例句：

1. 1. This new alloy is designed to withstand extreme temperatures.
   这种新型合金设计用来承受极端温度。
2. 2. The engineers used this alloy to make the gears more durable.
   工程师们使用这种合金制造齿轮以使其更耐用。
3. 3. The extra-super duralumin alloy is highly sought after for its superior strength and corrosion resistance.
   这种超级合金因其卓越的强度和耐腐蚀性而备受追捧。