corrosion rate

例句：

1. 1. The steel plate is exposed to the corrosion rate of 0.5 mm per year.
   该钢板每年暴露在腐蚀速率为0.5毫米的环境下。
2. 2. The research on the corrosion rate of steel in different environments is crucial for its durability.
   研究不同环境下钢铁的腐蚀速率对于其耐久性至关重要。
3. 3. The corrosion rate of the metal can be reduced by coating it with a protective layer.
   通过给金属涂上一层保护层，可以降低其腐蚀速率。