To investigate the mechanism of discoloration of black locus wood during thermal treatment process, the variations of functional groups in the lignin of black locust are studied by FTIR and UV-Vis.是什么意思_To investigate the mechanism of discoloration of black locus wood during thermal treatment process, the variations of functional groups in the lignin of black locust are studied by FTIR and UV-Vis.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句