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根据贫金属星中子俘获元素丰度的计算模型，研究了典型中子俘获元素丰度的观测误差对代表各核合成过程相对贡献的分量系数的影响，给出了分量系数的变化范围．“,”Based on the model of computing the abundances of the heavy elements in metal-poor stars,we study the influence of the errors due to the typical heavy-element abundance on the three component coefficients in 18 metal-poor stars,the upper and lower limits of the component coefficients are calculated.