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日光节约时间
daylight-saving time
- 在美国的和平时期，日光节约时间曾经是争论的焦点。
In the United States during peacetime, daylight saving was a subject of controversy. - 这会发生在时间及时调回时，例如从某个时区的日光节约时间转换回标准时间时。
It occurs when the clock time is adjusted back in time, such as during the transition from a time zone's daylight saving time to its standard time. - 研究人员相信，实施日光节约时间虽然能节省家用照明电费，但相对却提高了夏天夜间的冷气用量，以及初春与深秋清晨的暖气用量。
Although daylight time reduces demand for household lighting, the researchers suggest that it increased demand for cooling on summer evenings and heating in early spring and late fall mornings.
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