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1·Imperfection. A discontinuity in the product wall or on the product surface that can be detected by the inspection methods contained in this SOP manual.

缺欠。可用本标准操作规程手册中所述检验方法检验的产品壁面或表面不连续性。

2·Non-radial Imperfection. A non-radial imperfection may be defined as any imperfection whose vertical axis is not perpendicular (it's at an angle) to the material surface.

非径向缺欠。非径向缺欠可定义为其纵轴不垂直于（存在一个角度）材料表面的任何缺欠。

3·Radial imperfection. A radial imperfection may be defined as any imperfection whose vertical axis is perpendicular to the material surface.

径向缺欠。径向缺欠可定义为其纵轴垂直于材料表面的任何缺欠。

4·Scab. An imperfection in the form of a shell or veneer, generally attached to the surface by sound metal. It usually has its origin in an ingot defect.

结疤。通常由钢锭缺陷引起的、附着在完好金属表面上的薄壳状或镶片状缺欠。

5·Role of the cavity field, the electrostatic repulsive force at the domain boundary and self-enhanced diffraction light induced by physical imperfection on laser-induced surface damage are discussed.

本文讨论了由晶体缺陷所致的自增强衍射光，富集于缺陷的空间电荷所致的空洞场，以及由此场导致的发生在畴界上的静电斥力对此损伤所起的作用。