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The power range of the lenses is + 6 to -6 Diopters, and once the lenses are set, you take the vials off the arms of the glasses and store them for safe keeping.

镜片的焦强范围介于+ 6至—6屈光度之间，一旦确定了焦强，就可以将硅油瓶从眼镜摇臂上卸下，并将它们存放在安全的地方。

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If solar power is ever going to take off-and the world needs it to-photovoltaic cells will have to become a whole lot cheaper to produce.

如果太阳能产业可以崛起——并且世界需要它如此——光电池将不得不成为发电产业中造价低廉的一份完整的份额。

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We take off-the-shelf IT and Internet technology and transform the power grid and electricity transmission lines into an energy Internet.

FORBES: Jeremy Rifkin's Third Industrial Revolution

As anyone who has experienced such a system knows, it does not take long to learn to shut off the lights and to avoid use of some of the more power-hungry appliances.

FORBES: Paying Attention To Energy Use