non-metallic tank 非金属罐
horizontal metallic tank 卧式金属罐
metallic tank bottom 金属罐底
vertical metallic tank 立式金属罐
non-metallic tank body 非金属罐体
vertical metallic tank bottom 立式金属罐底
metallic oil tank [油气] 金属油罐
non-metallic oil tank [油气] 非金属油罐
The Metallic tank has mostly the local corrosion, the most obvious type is pitting corrosion.
金属油罐的腐蚀大多为局部腐蚀，其中点腐蚀最为明显。
The most sever location of metallic tank corrosion is the dent part on the bottom and the combined part of wall and top the top has circle corrosion type.
金属油罐腐蚀最严重的部位一是罐底板凹陷处；二是罐顶和罐壁结合部，罐顶外部呈环状腐蚀；
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