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电力系统的日负荷曲线表示日、週和得负荷的有规律的变化。在个别的日子里和在一(?)夜的各小时内,实际负荷可能与负荷曲线图有偶然的不规律的离差。这可能是个别用户的负荷彼此间不相协调所引起的,也可能是照明负荷波动所引起的。
The daily load curve of the power system shows the regular changes of the daily load and the weekly load. On individual days and in the hours of a (?) Night, the actual load may have occasional erratic deviations from the load curve. This may be caused by uncoordinated workloads of individual users and may also be caused by lighting load fluctuations.