Hours of Day Light的意思|示意

The light should only be left on for a maximum period of 8 hours a day.

把插座上开关打开。 灯光每天只能工作8小时。

Day and night would each be exactly 12 hours long on a spring or fall equinox only if the sun were a single point of light and Earth had no atmosphere.

如果想要昼夜在春秋分日达到精确地12小时等长，除非太阳是个单点光源或者地球上没有大气层。

Run during light and Warmer Times of Day: If possible, run during the light hours so absorb that needed sunshine we rarely get in the winter.

在光线充足和一天最温暖的时候跑步：如果可能，在有光照的时候跑步，以吸收在冬季难以获得却又是必需的阳光。

With limited daylight, chances are you'll be running in the dark (Alaskans, sadly, get only a few hours of dim light per day).

在有限的日光条件下，你极有可能会跑进暗处(很遗憾地说，阿拉斯加每天仅有几个小时的日光。)

What the birds really have is a clock-like mechanism which allows them to time hours of darkness or light in each day.

鸟类真正具有的是一种“似钟的装置”，使它们能从时间上区分每天黑夜或白昼的小时数。

For that reason, his Field of Light lies dormant during the hours of day light, but when darkness falls the bulbs flower in transfixing patterns of light and colour.

出于这个原因，他的灯光田园在白天的时候是关闭灯光的，但当夜幕降临时灯光开启后，“灯泡花朵”就会变得流光溢彩，令人惊艳。