遮光造成植株高度增加，但恢复正常光照后，其株高却逐渐低于对照。

Plant height increased compared with control during the shading period, but it was gradually lower than control after regaining normal light.

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风力发电厂提供保证藻类在水下及夜间正常生长的光照。 这项可行的未来计划是对太空船地球美好未来的完美设想。

Wind power could then provide lights to keep algae growing underwater and during the nighttime hours — a fitting vision for the sustainable future of spaceship Earth.

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但是，这些液晶显示器必须要背光照明才能正常工作，这就带来了更大的电池消耗，以及限制了它们体积的进一步小型化。

But these LCDs must be backlit to work properly-which can be a big battery drain and limits how small the gadgets can be made.

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