Results Principal component analysis of FTIR Spectroscopy exhibited practical value on reflecting the degree of difference in chemical compositions among different species from the same genera.
结果FTIR的主成分分析在反映同属不同种植物化学组成差异程度上具有应用价值。
2
The first principal component can denote the degree of soil salinity, and the second and third principal component can denote the degree of soil alkalinity.
第一主成分综合反映了区内土壤盐渍化程度，第二和第三主成分联合反映了土壤的碱性特征。
3
Two degree of freedom principal resonance of generator end winding is studied when the clamping plates are loose.