我国是多暴雨洪水的国家，洪水危害是主要自然灾害之一。在较大和特大洪水情况下，“牺牲局部，保护全局”，适时地采取分洪、滞洪措施，对于保障广大地区的安全和国民经济建设具有重要作用。对作出牺牲地区的人民生命财产安全和恢复生活、生产等进行妥善的安排，修建一些安全 China is a country suffering from heavy storms and floods, one of the major natural disasters. In the case of larger and extra-large floods, “sacrificing local conditions and protecting the overall situation” and adopting flood diversion and detention measures in a timely manner will play an important role in safeguarding the security in vast areas and in building the national economy. Make proper arrangements for the safety of people’s lives and property and the restoration of life and production in areas where sacrifices are made, and build some security