urban RBD城市RBDurbanadj.城市的；都市的urban ecological and environmental problem城市生态环境问题Urbanization and city forestry development城市化与城市林业的发展urban disaster-shelter green space index城市避灾绿地指标Urban Public Guiding Information Designing城市公共导向信息设计urban intermodal passenger transfer points城市客运换乘枢纽urban population transferred from peasants转型人口urban minimum subsistence allowance system城市低保制度Urban Transport Development and Management(三)城市交通建设和管理urban-rural income difference coefficient城乡居民收入差异系数urban transportation infrastructure project城市交通基础设施