For instance, in order to meet changing demand throughout the day, some plants must work as peaking power plant, whereas most nuclear plants in the world operate as base-load plants, and allow other fossil or hydro units to adjust to demand.
例如，为了满足不断变化的全天的需求，一些核电厂必须作为调峰电厂，而在世界上大部分核电厂的运行是作为基本负荷电厂，并允许其他化石燃料或水力发电机组来适应需求。