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对隐含变量进行偏微分最小二乘法模拟，可将紫外光谱参数与重质油品中的饱和烃含量联系起来，而不需事先进行脱沥青作用或层析分离。本文还对所涉及到的芳香混合物、人工样品以及实际石油馏分进行了统计评价，得到了它们的统计结果。
Partial Implicit Least Squares Simulation of Implicit Variables can relate UV spectral parameters to saturated hydrocarbon content in heavy oils without the need for prior deasphalting or chromatographic separations. The article also makes a statistical evaluation on the aromatic mixtures, artificial samples and actual petroleum fractions involved, and obtains their statistical results.