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方框２什么是水库的环境可持续性以太阳能为动力的水文循环是可持续性的典型。水流可以成为一种再生资源。必须利用这种循环以使工程长期使用（最好１００．年或更长），不断产生效益如发电、养鱼。从狭义上讲，持续性系指工程的使用寿命应尽可能的长。从广义上讲，可持续...
Box 2 What is the environmental sustainability of a reservoir? The solar-powered hydrological cycle is typical of sustainability. Water can become a renewable resource. This cycle must be used to make the project long-term use (preferably 100. years or longer) and continue to generate benefits such as electricity generation and fish farming. In a narrow sense, sustainability means that the service life of a project should be as long as possible. In a broad sense, sustainable ...