1) pillowy error
枕形误差
2) pincushion aberration
枕形像差
3) profile error
形状误差
1.
Detection of profile error of ship hull plate processing surface;
船体外板曲面形状误差评定方法分析
2.
The conventional method of qualitative inspection and description of the profile error is now incapable of meeting the requirement for product quality control in modern society.
针对曲面形状误差评定使用传统的模板定性检测、定性描述的方式已不能满足现代制造对产品质量的控制要求，提出了一种新的参数曲面形状误差计算的迭代逼近法。
4) profile error
齿形误差
1.
Research on Coordinate Method for Measuring the Profile Error of Wormgears;
坐标法测量蜗轮齿形误差的研究
2.
Measuring the Profile Error of the Involute Gear;
齿轮渐开线齿形误差的测量
3.
The tooth profile error and longitudinal form error are calculated,and the change rule with setting angle of them is got.
针对花键的齿形误差和齿向误差,按照误差计算原理,得出了计算结果及其随安装角改变的变化规律。
5) Form error
形状误差
1.
Distribution type of form error and its evaluation model;
形状误差的分布类型及评定模型
2.
Distribution of direct measurement results of measurement points of form error;
形状误差测量中测量点直接测量结果的分布
3.
Reading contributions of generalized displacement sensors in the separation of form error and error motions;
广义位移传感器在形状误差和误差运动分离中的读数贡献
6) form accuracy
面形误差
1.
In order to assure form accuracy and surface roughness of optic free-form surface of injection mould core,form grinding of free-form surface was conducted in CNC precision grinder by use of precisely dressed and trued arc-shaped coarse diamond grinding wheel to realize effective mirror grinding.
加工高速钢自由曲面时,面形误差(PV值)可以达到10μm以下,表面粗糙度Ra可以达到约16 nm。
补充资料：枕形失真
枕形失真
枕形失真（pincushion distortion）
枕形失真是由镜头引起的画面向中间“收缩”的现象。在使用长焦镜头或使用变焦镜头的长焦端时，最容易察觉枕形失真现象。特别是在使用焦距转换器后，枕形失真很容易便会发生。当画面中有直线（尤其是靠近相框边缘的直线）的时候，针垫形失真最容易被察觉。普通消费级数码相机的针垫形失真率通常为0.4%，比桶形失真率低。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。