principal-componentCOCA²⁵⁴³³⁷⁺⁶Economist⁴¹³⁰³⁺² 基本例句 un.主要成分；主要成份；主分量；🌏主成分；主成份；知成分 An improved PCA is presented which uses principal-component- related variable residual PVRstatistic and Common Variable Residual CVR statistic to replace SPE statistic. 该方法采用主元相关变量残差 PVR和一般变量残差 CVR统计量代替 SPE统计量用于过程监测。 cnki