First, they are "thin," meaning that they contain low-powered hardware and thus use much less electricity than expensive laptops.
首先，它们非常“瘦”，这意味着它们包含低耗电的硬件，因此要比价格高昂的笔记本更加省电。
On a smart grid, intermittence is less of a problem because smart meters and other technologies can be used to manage electricity demand and to store power when too much is being generated.
在智能网里，新能源的供应时断时续并不是大问题，因为智能表和其他技术可以调节用电需求，如果发电过多可以储存起来。
Wolff estimates that less than 1% of the world's deserts would provide enough space to produce as much electricity and the world currently consumes.
沃尔夫预计，只要世界上不到1%的沙漠地带得以利用，就可以生产出足够当今世界消耗的能量。
Mr Sparrow and Mr Zoshi, by contrast, reckon they can produce that much fresh water with less than 1 kWh of electricity, and no other paid-for source of power is needed.
相较于前两种方法，Sparrow和Zoshi估算他们可以用不到1千瓦时的电力，同时也不需要其他任何付费能源就能产出更多的饮用水。
With an 18 - watt fluorescent bulb you get as much light but use 75% less electricity.
用18瓦的荧光灯灯泡有同样的亮度，而用电量却减少75%。
With an 18 - watt fluorescent bulb you get as much light but use 75% less electricity.
用18瓦的荧光灯灯泡有同样的亮度，而用电量却减少75%。
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