High energy densities cause significant surface decomposition and damage.
高能量密度可引起明显的分解和损伤。
Edges, deep recesses and secondary surfaces are not included in the significant surface.
边缘、深隐窝和次表面并不包含在正表面中。
The significant surface must be defined by the customer and is the part of the total surface which is essential to the appearance and serviceability of the item.
正表面必须由客户界定,必须是总表面上对材料的外观及可用性是至关重要的一部分。
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