The compact and small particle oxide film was very corrosion resistant. The weight gain rate of samples declined very much firstly, and then changed little.
致密细小氧化物膜具有很强的耐蚀性，腐蚀增重速率先是大幅降低，然后逐渐平缓。
The compact and small particle oxide film was very corrosion resistant. The weight gain rate of samples declined very much firstly, and then changed little.
致密细小氧化物膜具有很强的耐蚀性，腐蚀增重速率先是大幅降低，然后逐渐平缓。
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