corrosion region

例句：

1. 1. The steel plate was severely corroded by the acid.
   钢板被酸严重腐蚀了。
2. 2. The research team found a corrosion region in the old ship's hull.
   研究小组在旧船的船体上发现了一个腐蚀区域。
3. 3. The corrosion region is a critical area for maintenance and repair work.
   腐蚀区域是维护和修理工作的关键区域。