实现了两种求解非线性问题的数值计算方法：改进欧拉法和增量牛顿迭代法。
Two calculational methods for nonlinear analysis are adopted, that is, the improved Euler method and the Newton iteration method.
在该模拟中，本文通过对COD浓度的计算，又把质点跟踪法和改进后的欧拉·拉格朗日方法作了比较。
In this modeling, the Particle-tracing Method is again compared with the improved ELM by calculating the concentration of COD.
在该模拟中，本文通过对COD浓度的计算，又把质点跟踪法和改进后的欧拉·拉格朗日方法作了比较。
In this modeling, the Particle-tracing Method is again compared with the improved ELM by calculating the concentration of COD.
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