矢量微分方程 meaning in English

vector differential equation

Numerical simulations were done to show the distortion of the wavefront and the interference pattern under several kinds of typical plasma density distributions . the ray path in plasma was calculated by the numerical solution of the vector equation of light ray , when the plasma density was closing to the critical electron density of the laser frequency . through the simulations , the factors that influence the measurement were found out under different density distributions and shapes of plasma
在此基础上，采用数值模拟的方法，计算了在几种典型的等离子体密度分布下，激光波面的变化和产生的干涉图样；并用光线矢量微分方程的数值解法计算了当等离子体密度接近光频临界电子密度时，光线在等离子体中的传播路径，从中掌握了在不同的等离子体密度和形状下，进行干涉测量所应估计到的因素。