The treatment may homogenize, densify microstructure, and further more improve the surface corrosion resistance.
经过稀土渗入处理后的镁合金，显微组织均匀、致密，有利于耐蚀性的提高。
The state of beam electrode surface corrosion in 3d electrode is studied under different experimental conditions by using scanning electron microscopy (SEM).
借助扫描电镜(SEM)对不同实验条件下的三维电极主电极表面腐蚀状况进行研究。
Measures experimentally the inner surface corrosion rate of carbon steel pipeline during operation and suspending period respectively, and points out the deterioration degree.
通过试验对集中供暖系统在运行状态和停暖状态下主管道碳钢内表面腐蚀速率分别进行了测定，并指出了危害程度。
PC board is not resistant to acid and alkali, and not with alkaline or corrosive substances stored in together, because of the PC board will react with the chemicals as plate surface corrosion.
而且PC板不耐酸碱，切勿与碱性或腐蚀性物质贮存在一起，因为PC板会与这些化学物质发生化学反应致使板材表面腐蚀。
The result show that the size of equivalent initial surface crack is less than 19.7to 22.5 percent of surface corrosion pit size which have the same life.
结果发现，把腐蚀坑等效为具有相同寿命的表面裂纹时，等效表面裂纹的尺寸比对应腐蚀的尺寸小19.7% - 22.5%。
The cause of surface corrosion of optical glass, the traditional anti-corrosive method, as well as the mechanism, method and effect of new anti-corrosive technology are discussed comprehensively.
本文全面的论述了光学玻璃表面被腐蚀的原因，传统的防腐方法，以及新防腐工艺的机理、方法与效果。
The cause of surface corrosion of optical glass, the traditional anti-corrosive method, as well as the mechanism, method and effect of new anti-corrosive technology are discussed comprehensively.
本文全面的论述了光学玻璃表面被腐蚀的原因，传统的防腐方法，以及新防腐工艺的机理、方法与效果。
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