동아사이언스

일본의 기술

과학동아 1991년 01호

made their slow passage westward.(The interruption of this silk route by the Turks was one of the causes that led eventually to ... highway running the width of Asia along the course of the old silk route.They dream also of using the copious water power in the ... the production of nonpolluting electrical power of building a road across the northwestern tip of Colombia, just south of the ...