因这种碱化土壤的改良难度较大，而目前从事此项工作的研究的又很少，使这相当数量的土地被常期撩荒。
Because It is more difficult to be improved and now the study for alkaline soil is also few, much land is long abandoned.
木粉的碱化处理使复合材料的弯曲强度和弯曲模量分别下降20。
Alkaline treatment of wood flour makes flexural strength and flexural modulus of the composite decrease by 20.
木粉的碱化处理使复合材料的弯曲强度和弯曲模量分别下降20。
Alkaline treatment of wood flour makes flexural strength and flexural modulus of the composite decrease by 20.
应用推荐