城市基础设施体系1.城镇污水处理2.城市生活垃圾3.大气污染综合防治4.清洁能源建设5.人居环境改善

• System of urban infrastructure facilities 1. Urban sewage treatment 2. Municipal wastes 3. Comprehensive treatment of air pollutants 4. Development of clean energies 5. Improvement of human habitation