5Characteristics of sand source zones in Chengde city and its prevention and control measure analysis12-14
13Fulfillment conditions and format of “separation of administration and maintenance” in water administrative departments36,50
15Design and implementation of new and old concrete connection in Ningchegu coastal sluice in Tianjin city39-40
16Discussion on impacts and challenges of accession to WTO on supervision industry and its countermeasures41-42,54