城市中心区
city centre
city center
City centre area
Urban center district
town center district
Keywords: urban central district
urban center areas
urban-centre districts
urban center
urban central areas
downtown areas
urban central area
urban core-areas
Central Area of City
central business district
Urban downtown area
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
geological laboratary
Shanghai Bureau of Geology and Mineral Resources