prevention of corrosion in boilers

例句：

1. 1. The doctor advised us to take the medicine regularly to prevent infection.
   医生建议我们定期服用药物以防止感染。
2. 2.To prevent accidents, the factory has installed safety devices in all areas.
   为了防止事故，工厂在各个区域都安装了安全设备。
3. 3. The government is taking measures to prevent the spread of the virus.
   政府正在采取措施防止病毒的传播。