城市中心区
Central Area of City
Urban center district
town center district
urban central area
urban central areas
Keywords: urban central district
Urban downtown area
city centre
urban core-areas
downtown areas
urban center
urban-centre districts
city center
urban center areas
City centre area
central business district
DOWNTOWN
城市中心区工业废弃地
industrial wasteland in the center of a city
大城市中心区
downtown area of big cities
地矿部上海市中心实验室
Shanghai Bureau of Geology and Mineral Resources
geological laboratary