process of layer-after-layer corrosion 层层腐蚀过程
corrosion layer 腐蚀层
three-layer anti-corrosion 三层防腐
corrosion product layer 腐蚀产物层
A technology of three - layer corrosion prevention coating has been developed and used in the corrosion prevention project of steel pipe piles in Dandong dock.
根据海洋钢管桩防腐需要研究开发的管道三层结构防腐涂层技术，已在丹东港码头钢管桩防腐工程中应用。
The surface morphology of corrosion layer, corrosion products, structure and alloy elements of rust layer in natural city atmosphere were studied by metallographic observation, SEM and XRD.
主要采用金相、扫描电镜、X-射线衍射方法分析和探讨了初期腐蚀层形貌、腐蚀产物和合金元素的分布。
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