Then, the stepwise regression analysis method is used to select the sensitive wavelengths and spectral parameters and establish kalium content estimation models.

然后，采用逐 步回归分析方法，筛选敏感波长与光谱参数，建立钾素含量估测模型；

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Then, the stepwise regression analysis method is used to select the sensitive wavelengths and spectral parameters and establish kalium content estimation models.

然后，采用逐 步回归分析方法，筛选敏感波长与光谱参数，建立钾素含量估测模型；

youdao