approximation characteristic造句

this paper researches the numeric approximation characteristic of series-parallel fuzzy system and points out that the number of fuzzy rules should not exceed the number of the samples . in addition, the influence of approximation error and system initial error on the performance of the series-parallel fuzzy system is also investigated
本文研究了串并联方式模糊系统的数字逼近特性，得出结论：当模糊规则数等于样本数时，已经可以实现精确插值，因此模糊规则条数不能超过样本数目，否则将冗余，并可能引起振荡，削弱模糊系统的泛化能力。
It's difficult to find approximation characteristic in a sentence. 用approximation characteristic造句挺难的