The hardness of anodic oxidation layer is higher, the tribological property of composite coating is better.
阳极氧化层的硬度越大，复合膜摩擦学性能越好。
External oxidation layer didn't found to have obvious influence on iron loss, the largest influence came from internal oxidation.
发现表面氧化对铁损没有明显影响，内氧化层对铁损影响最大。
Nitriding and oxidation: diffusion layer and oxidation layer improve soldering resistance, adhesion resistance and crack resistance.
氮化扩散层和氧化层：可以提高模具耐溶损性、耐过烧性、耐粘着性和耐热裂性。
In this paper, silicon oxidation layer was fabricated on plastic surface using sol-gel method, and the fabricated SiO_2 layer was used to extract DNA.
本文用溶胶-凝胶法在塑料表面制作二氧化硅涂层，并利用制作的二氧化硅层来提取DNA。
Then the microstructure and formation mechanism of oxidation corrosion product (oxidation layer) of TP347H and TP304H steel were studied by means of SEM and EDS.
接着借助扫描电镜和能谱仪深入认识了TP347H和TP304H钢氧化腐蚀产物（氧化层）的组织结构及形成机理等。
Then the microstructure and formation mechanism of oxidation corrosion product (oxidation layer) of TP347H and TP304H steel were studied by means of SEM and EDS.
接着借助扫描电镜和能谱仪深入认识了TP347H和TP304H钢氧化腐蚀产物（氧化层）的组织结构及形成机理等。
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