When the lighting level falls below about 1 lux the cones cease to act.

当照度低于约1勒克司时，锥状细胞就不再起作用。

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This paper discusses the changing rule of pupil size with the lighting level and different light color under the road lighting level.

探讨了瞳孔大小随照明水平和不同光色的变化规律。

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In overcast conditions, light shelves cannot increase the lighting level; they operate most effectively when direct sunlight is available.

在阴天的情况下，光架不能增强室内的照明度；它们在有直接光照的情况下，才能起到很好的效果。

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About 93 percent of 3, 040 large U.S. hospitals used one or more day lighting or lighting conservation features, including tinted window glass (80 percent), reflective window glass (39 percent), external overhangs or awnings (47 percent), skylights or atriums designed to provide light (57 percent), automatic controls or sensors that increase or reduce lighting in response to the level of natural light (14 percent), and occupancy sensors that reduce lighting when rooms are unoccupied (46 percent).

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By analysing the scans, the scientists found that the nucleus accumbens was "lighting up" and depending on the level of activity, the researchers could predict whether the participant was likely to buy a song.

BBC: New music 'rewarding for the brain'

Meanwhile, the controller screen showed a map of the area, a button to change the lighting, a button to change the camera angle, and game details like health level.

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