secondary surface stamping 背面烫印
secondary surface preparation 二次除锈
Reverse Secondary Surface Normal 反转次曲面法线方向
secondary standard reference surface 二级标准磁盘面
alloy secondary emission surface 合金二次放射面
secondary emission surface 二次电子发射面
secondary flight control surface 飞行辅助 ; 飞行辅助操纵面
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。
If gypsum is adopted as the face layer because the surface is smooth and flat secondary surface-rolling procedure for surface can be omitted.
若采用石膏作面层，其光洁平整的表面可以省去表面的二次抹平工序。
When such damage comes to the surface of steel and rust occurs, the surface shall be cleaned by power tools to the secondary surface preparation grade and coated as originally painting scheme.
如果钢表面发生上述损坏，产生锈，用电力工具对表面进行清除，处理至二次表面处理等级，涂上一层与原始油漆一样的涂层。
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