n.侵蚀；腐蚀；锈蚀
Some substances resist corrosion by air or water. 有些物质可以抗空气或水的腐蚀。
Clean off any corrosion before applying the paint. 先除去所有的锈迹再上油漆。
adj.抗蚀的；不锈的
[机] 防蚀
n.防腐蚀
