数值估计 meaning in Chinese

numerical estimates

And then , the simulation results of academic formulae are compared with those evaluated by numerical formulae , which results have advantages and disadvantages of their own
利用仿真结果对有效线导纳的理论公式和数值估计表达式进行了比较和分析，确定了数值估计表达式的适用范围。
The auto - spectrum is attached to linear phase , the amplitude - frequency drawing is got according to the arithmetic of bi - spectrum , then the equivalent is educed , the conversion relation is attained
该方法通过对自谱添加线性相位，根据双谱的数值估计算法计算获得双谱在三维空间的幅频图，通过推导双谱与自谱估计算法之间的等价关系以及所得的幅频图来实现两者之间的相互转换。