Acidic aggregate such as gneiss, granite and gritstone can not be wildly used in road construction because of the poor adhesion to asphalt.
片麻岩、花岗岩和砂岩等酸性集料由于与沥青较差的粘附性而使其在公路建设中得不到广泛应用。
2
The reasons that the performance of agricultural expenditure of public finance is not very good include small aggregate, unsatisfied structure and poor management system.