For this treatment, you sit in front of a "light box" for half an hour or longer, usually in the morning.

这种治疗通常会在早上进行，你需要在一个“光照箱”前坐半小时或以上。

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After one hour of exposure to light, they reported in a recent issue of Applied Materials &Interfaces, the capsules killed more than 95% of the bacteria used in the study.

他们在近期的《应用材料和界面》中报道，在接受光照一小时之后，这种胶囊杀死了多于95%的用于实验的细菌。

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This is called "dark adaptation" and it takes your eye up to an hour to become fully adapted to seeing in low light conditions.

这就叫做“暗光适应”。你的眼睛花上一个钟头就可以完全适应光线暗淡的环境。

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Considered the world's most advanced sun-powered plane, the Solar Impulse took off from Moffett Field in Mountain View at first light for a two-hour practice run in advance of a planned multi-city, cross-country tour.

WSJ: Sun-powered plane completes California test flight

Combined-cycle gas turbines, which use hot exhaust gases from one turbine to generate steam to turn a second one, can transform 6, 800 Btu of gas into a kilowatt-hour of electricity, enough to light one lightbulb for ten hours.

FORBES: Indigestion

Every day from the week of July 6, special reports will appear on CNN International, culminating in a half-hour special "Going Green: Green Light for Business" which airs from July 9 (see below for show times).

CNN: 'Going Green' with