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天然河道上建设水电等工程,必然改变天然河道的水文特性,与其同时水电等工程的运行管理也需要水文资料和水文信息的支持。
The construction of hydropower projects on natural rivers will inevitably change the hydrological characteristics of natural rivers. At the same time, the operation and management of hydropower projects also need the support of hydrological data and hydrological information.