The method USES the model of radial nonlinear distortion with the symmetry of optical axis to obtain correction coefficients of the optical lens, and then corrects the distortion image.
该方法利用与光轴对称的径向畸变数学模型求出光学镜头的校正系数，对畸变图像进行校正。
In this paper, the reactance silencer with axis symmetry is analyzed in finite element method so as to establish a mathematic model for the programming of calculation of the trans-mission loss.
通过对轴对称抗式消声器进行有限元分析，建立其数学模型，对传递损失编制程序计算。
Transverse isotropic model for HTI media with a horizontal symmetry axis is the simplest one used to describe the transverse isotropy of the fractured reservoirs containing parallel vertical cracks.
具有水平对称轴的横向各向同性(HTI)介质模型是用来描述含有平行垂直裂缝油气藏最简单方位各向异性介质的模型。
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