This design can be used in low-power monochromatic mode for reading, but can also switch to backlit colour mode when needed.

该设计可用于低功耗的单色阅读模式，但需要时，也可切换至背光彩色模式。

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At the Consumer Electronics show earlier this month, Pixel Qi showed a LCD display that can switch between a full-color video mode and a low-power black-and-white display.

在这个月前段时间的消费者电子产品展示会上，Pixel Qi公司展示了一款可以在全彩视频模式和低能耗黑白显示模式之间切换LCD显示屏。

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As daylight dwindles and temperatures drop in this forest in Perthshire, Scotland, beech trees (Fagus sylvatica) switch into power-saver mode.

当森林里的白天在减短，气温在降低时，苏格兰佩思郡的山毛榉(Fagus sylvatica)就进入了一种保存能量的状态。

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At the core of the Fidelio SoundBar are high quality TI Class-D amplifiers - with a built-in DAC - powered by a compact SMPS (Switch-Mode-Power-Supply) to provide a full digital architecture, delivering highly efficient audio amplification and premium audio quality.

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By pressing the switch once, the light operates in high mode to produce a full power 130 lumen light beam with a long 4 hour runtime.

ENGADGET: Explosion-proof flashlight could be the first to outlive its owner

AMD's touting Puma's Hybrid Graphics mode that allows the system to intelligently switch between a Radeon HD3400 and integrated graphics for max power-savings, so it'll be interesting to see how the system stacks up against Intel's Atom and VIA's Isaiah -- like NVIDIA, AMD seems to be betting that consumers care more about graphics than raw horsepower.

ENGADGET: AMD says post-Phenom CPUs will be "completely different," 100 laptops to launch with Puma