The initial attack has the characteristics of localized corrosion.

镁合金的初期腐蚀具有局部腐蚀的特征。

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The exposure used in this practice is not intended to simulate the deterioration caused by localized weather phenomena such as atmospheric pollution, biological attack, and saltwater exposure.

本标准使用的老化条件并不试图去模拟当地气候现象如大气污染、生物侵蚀，以及盐水老化导致的性能退化。

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Almost any lack of homogeneity of the metal surface or its environment may initiate attack, by causing a difference in potential. The result is corrosion that is usually localized.

只要金属表面或它的环境缺少同一性，就可能引起电位不同、产生腐蚀，这种腐蚀常是局部性的。

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