Invar low expansion alloy

例句：

1. 1. The Invar alloy is used in the construction of buildings and bridges.
   因瓦合金用于建筑和桥梁的建设。
2. 2. The Invar alloy has excellent corrosion resistance, making it ideal for marine applications.
   因瓦合金具有良好的耐腐蚀性，非常适合海洋应用。
3. 3. The Invar alloy is known for its high strength and dimensional stability.
   因瓦合金以其高强度和尺寸稳定性而闻名。