straight method meaning in English

钢梁直配孔型轧制法
直配孔型轧制法

Expressions in three kinds of perfectly matched layer ( pml ) absorbing boundary conditions is also given . second , the numerical theories of the auxiliary fields fdtd method is studied , including the stability of the differential equations and the numerical dispersive relationship . the stability of two kinds of differential formulations and three kinds of pml is compared , using a straight method depending on the pmax - t graph
更进一步，研究了辅助场fdtd方法的数值理论，对其微分方程、差代方程的稳定性进行了分析，比较了有耗媒质中的两种差分格式和三种理想匹配层中的差分格式的稳定性，提出了一种通过p _ ( max ) - t曲线判定稳定性并求出稳定性条件的直观方法，并导出了该方法的色散关系式。