The TM set of equations can be solved using a finite difference time domain (FDTD) approximation that is second-order accurate in both space and time.
采用时间和空间均为二阶精确的有限差分方法，将偏微分方程进行差分化。这样，空间的电磁场可由时间域有限差分法（FDTD）来求解。
In this paper, the numerical results of burning gas flow in the vertical launch system of a rocket are reported. A second-order accurate MUSCL scheme is employed.
本文报导了火箭垂直发射系统燃气流场的数值计算结果，在计算中采用二阶精度的MUSCL格式。
Modifying the salinity difference format and salinity equations of the original model, the present model USES the second-order accurate difference format and introduces the term of physical diffusion.
改进了原模式的盐度差分格式和方程，采用二阶精度差分格式并引入了物理扩散项。
We present an accurate route, which is suitable for the design of nonlinear optical frequency translator of biaxial crystals, to calculate the effective second-order nonlinear coefficients.
本文介绍计算双轴晶体二阶有效非线性系数的严格理论，适用于双轴晶体非线性光学频率变换器件的设计。
The fitting results indicated that the first order equation and the second order equation were more accurate and could replace other kinetics equations.
结果表明：一级动力学方程和二级动力学方程比其他动力学方程更准确，能够代替其他动力学方程。
The fitting results indicated that the first order equation and the second order equation were more accurate and could replace other kinetics equations.
结果表明：一级动力学方程和二级动力学方程比其他动力学方程更准确，能够代替其他动力学方程。
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