galvanizing by dipping

例句：

1. 1. Thesteel beams were galvanized beforebeing used in the bridge construction.
   这些钢梁在用于桥梁建设之前进行了镀锌处理。
2. 2. The old iron fence was replaced witha new one that had been galvanized for durability.
   旧铁栅栏被换成了新的，经过镀锌处理以增加耐用性。
3. 3. The workers used a special solutionto ensure that all metal surfaces were properlygalvanized.
   工人们使用一种特殊的溶液确保所有金属表面都得到了正确的镀锌处理。