Using surface coating of healants, the surfaces of the corroded, impact-crushed and cavitation-eroded equipments were repaired and protected, and the useful life of the equipments can be increased.
通过表面粘涂，对受到腐蚀、冲蚀、气蚀的设备进行表面修补与防护，可提高设备的使用寿命。
With joint protections of coating and cathode, the buried steel pipeline will still be corroded and penetraded on some pipe surfaces.
埋地钢质管道在防腐层、阴极防腐的共同保护下，钢管的某些区域仍会被腐蚀穿孔。
Surfaces of corroded specimens have been examined by means of metallography, X-ray diffraction analysis, EPMA, SEM, etc.
并用金相、X -线衍射分析、电子探针、扫描电镜等方法对试验后样品的腐蚀表面进行了观察研究。
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