barrel shaped distortion

• 负畸变

barrel shaped distortion的用法和样例：

例句

1. The effect is termed harmonic distortion.
   这种作用就称为谐波畸变。
2. A collinear points-based method to solve the distortion coefficient was presented.
   针对这种情况，提出了一种基于空间共线点求解透镜畸变系数的简便方法。