Abstract: The paper mainly introduces how to optimize the existed filtration method with statistics normal distribution and quadrature optimization, which make the optimized filtration method economic, time saving and effective.

• 摘要:主要介绍了如何利用正态分布和正态优化对现有的筛选方法进行优化,从而使优化后的筛选方法在达到预期筛选目的的情况下做到最经济,省时和有效。