weighted least square fitting
加权最小二乘拟合
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Substantially, this method is a smoothing process resulted from the mathematical skills of weighted least square fitting, combining with the iterative method for correct indexing.
其方法实质上是加权最小二乘拟合与叠代修正指标化的技巧相结合的平滑过程。
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