采用丝束电极，对涂油金属的电化学不均匀性进行了研究。
The electrochemical inhomogeneity on oil painted metal was studied by wire beam electrode.
氧化后聚乙烯表面上的液体接触角滞后是由于表而化学不均匀性所致。
The contact Angle hysteresis indicated the Chemical heterogeneity on the oxidized PE surfaces.
结果表明，喷涂后的涂层中存在化学不均匀性，原始颗粒越小不均匀性越严重；
The results show that there are chemical inhomogeneity regions in the as-sprayed HA coatings, the smaller the original particle is, the more serious the chemical inhomogeneity is.
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