Once attached to the rail, the car will become electrically powered from the system, and control of the vehicle will pass to a central computer.

一旦连接到轨道上，汽车将由系统提供电力，由中央计算机控制。

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Powered from cars 12vdc supply.

技术从汽车12vdc供应。

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Rail locomotives powered from an external source of electricity or by electric accumulators.

铁道电力机车，由外部电力或蓄电池驱动。

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They were suspended from ropes as they used heavy air-powered hammers to break any loose rock away from the face of the canyon walls.

VOA: special.2009.08.12

The whole thing is being powered by sending heat from the hot to the cold reservoir.

所要做的所有事情,就是把热量从高温热源输送到低温热源。

麻省理工公开课 - 热力学与动力学课程节选

Suarez says renewable energy could be generated by a turbine powered from collected groundwater.

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It said there would have to be a significant shift to electric cars, powered from renewable energy sources.

BBC: Climate measures 'bring benefits'

It means that as carriers try to profit from consumer usage, they may discourage customers using iPhone and Android powered phones from increasing video, picture and Web data downloads in the exponential fashion that Apple and Google investors are accustomed to seeing.

FORBES: Verizon Wireless Dance May Draw In Apple, Google