The high purity of guaiacyl lignin in Douglas fir fiber.而且花旗松纤维的愈创木基木质素含量较高....

愈创木基...

guaiacyl的音标：guaiacyl的英式发音音标为：[ɡ'jʊəɪəsɪl]guaiacyl的美式发音音标为：[ɡ'jʊrɪrsɪl]...