变性淀粉是一种经过改性过的淀粉。
认为石油沥青经过改性后制备浸渍剂沥青符合环保和经济性要求。
It is in keeping with the requirement of environmental protection and economic efficiency to produce impregnating pitch from petroleum bitumen modified.
认为石油沥青经过改性后制备浸渍剂沥青符合环保和经济性要求。
It is in keeping with the requirement of environmental protection and economic efficiency to produce impregnating...
应用推荐