Warning: file_put_contents(): Only 0 of 7299 bytes written, possibly out of free disk space in /home/www/wwwroot/ndsq.cn/index.php on line 55 sacrificial anode英英字典_sacrificial anode剑桥英语解释_sacrificial anode柯林斯英文解释_开心英文字典_柠咚词
1. N an electropositive metal, such as zinc, that protects a more important electronegative part by corroding when attacked by electrolytic action 牺牲阳极[metallurgy]