The polyurethane surround is structurally symmetrical and highly compliant to further reduce distortion.
聚氨酯环绕的结构对称，高度兼容，以进一步减少失真。
2
An arithmetic for remote parallel compensation, based on symmetrical components harmonic power flow, is given to solve the problem of voltage distortion of sense loads.
介绍了对称分量下解耦谐波潮流计算，提出谐波异地并联补偿的算法，并给出计算实例。
3
With regard to image center, pixels′ distribution on image plane is still symmetrical even under the influence of lens distortion.