corrosion protection

例句：

1. 1. The steel structure needs to be protected against corrosion.
   这个钢结构需要防腐蚀。
2. 2. Corrosion protection is crucial for the long-term stability of the structure.
   腐蚀防护对结构长期稳定性至关重要。
3. 3. To prevent corrosion, we need to regularly inspect and maintain the metal parts.
   为了防止腐蚀，我们需要定期检查和维护金属部件。