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体育场夜间照明由200多个“无影灯”提供。为保证比赛照明万无一失，这些照明用灯为两路供电，当一路出现故障时，另外一路立即启动。即便两路供电系统都出现故障，体育场还有备用发电机提供电
https://www.alighting.cn/case/20091120/V6364.htm2009/11/20 9:06:59
