brownout
noun [ C ] mainly US uk/ˈbraʊn.aʊt/ us/ˈbraʊn.aʊt/
限量供电;供电不足
an occasion when less electric power than usual is supplied to an area
Peak usage periods, such as extreme cold weather, have been known to spark brownouts. 我们已经知道在用电高峰期，比如严寒的冬天，会有供电不足的情况发生。