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:主要介紹了如何利用正態(tài)分布和正態(tài)優(yōu)化對現(xiàn)有的篩選方法進行優(yōu)化,從而使優(yōu)化后的篩選方法在達到預(yù)期篩選目的的情況下做到最經(jīng)濟,省時和有效。