The results show that the lignin of Populus deltoid wood is a GS type lignin (Residual lignin in its APMP pulps is the same type) with a content of S-56.81%, G-42.42% and H-0.77%.是什么意思_The results show that the lignin of Populus deltoid wood is a GS type lignin (Residual lignin in its APMP pulps is the same type) with a content of S-56.81%, G-42.42% and H-0.77%.在线翻译_英语_读音_用法_例句