Classification of Vehicle Bumpers Through Micro⁃laser Raman Spectroscopy Based on PCA⁃LDA
QIU Weilun, ZHOU Yanwu, SHI Mengliang
China Plastics . 2021, (1): 78 -83 .  DOI: 10.19491/j.issn.1001-9278.2021.01.013