每台摄影机都拍了多条测试样片，先拍从白天到黄昏景，再拍从暮色到夜景。
They shot multiple samples with each camera, first from daylight to sunset, then twilight to nighttime.
毕竟，当白天执行用电管制时，汽车正在行驶，而晚上用电需求少些时，汽车再充电。
After all, the cars are typically driven during the day, when most of the blackouts are scheduled, and charged at night, when demand is lower.
次日清晨，当太阳直射房子的时候，一整个白天都关闭所有门窗，直到室外比室内凉快后再通风。
As soon as the sun hits the building the next morning, close all Windows and keep doors and Windows closed throughout the day until it is cooler outside than it is inside.
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