The reactivity of wheat straw soda lignin ( WSSL ) can be improved by demethylation modification.麦草 碱木素在碱催化下经脱甲基改性可提高其反应活性.The wheat sprouts grew perceptibly after the rain.下了一场雨,麦苗立刻见长.Heat - denatured wheat endosperm p...
An elderly woman, arms crossed, sang the descant.一位双臂交叉的老妇人演唱了高音部。You need not descant upon my shortcomings.你不必絮说我的缺点.She is catching cold today, so she can't descant on the tune.她今天感冒了, 不能唱高声卸....