tin difluoride

例句：

1. 1. Tin difluoride is a common alloy used in the production of electrical contacts.
   锡二氟化物是一种常见的合金，用于生产电气接触点。
2. 2. The chemical properties of tin difluoride make it useful in various applications.
   锡二氟化物的化学性质使其在各种应用中非常有用。
3. 3. Tin difluoride is often used as a coating on metal surfaces to improve corrosion resistance.
   锡二氟化物常被用作金属表面的涂层，以提高耐腐蚀性。