galvanized elbow

例句：

1. 1. The roof of thehouse was galvanized to prevent corrosion.
   这栋房子的屋顶被镀锌以防止腐蚀。
2. 2. The fence around the garden ismade of galvanized metal for addedsecurity.
   花园周围的篱笆是用镀锌金属制成的，以增加安全性。
3. 3. Galvanized pipes are commonly usedin plumbing systems due to theirdurability and resistance to corrosion.
   由于其耐用性和抗腐蚀性，镀锌管常用于管道系统中。