近红外光谱主成分分析，适用于各类光谱定性和定量计算使用-Near Infrared Spectroscopy principal component analysis, applicable to all types of spectrum use qualitative and quantitative calculation

近红外光谱预处理方法，msc,snv,1-Der,2-Der,smooth,center-Near Infrared Spectrum Pretreatment methods, msc, snv, 1-Der, 2-Der, smooth, center, etc.