It was found that Ce may improve the anodiccorrosion properties of the alloy, but La and misch metal may make its properties worse.
发现铈能改善合金的阳极腐蚀性能，而镧及混合稀土均使合金的阳极腐蚀性能变差。
2
To ensure the anodiccorrosion cathodic protection system working effectively over a long period of time, regular detection and maintenance of the system should be made.
为确保牺牲阳极阴极保护系统长期有效地工作，应当定期检测与维护。
3
The importance of control to time of caustic soda corrosion and anodic oxide technology is pointed out.