Then in 2007 Dr Herr took this a step further by incorporating assistive power into an artificial leg, or prosthesis.

2007年，赫尔博士进一步为人造腿(或人造义肢)加上辅助电源。

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Even when the car is off and locked, these fans whir around, so when you step back into it you don't need to crank up the power-hungry air conditioning.

即使在汽车熄火及锁着的时候，这些冷却风扇也在呼呼旋转着，所以当你回到车内时，你无需开大耗电的空调。

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Whereas the very first step in power is a flight — is an ascending movement into another element where earth is forgotten.

然而，力量所迈出的第一步是飞跃，就是向另一种境界的超载——在那时，尘世的一切都会被忘却。

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As I write my first book, in this room, I am reminded to step into my power as Diana had done.

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Mr Leckey said the Commission, which was established last year under the terms of the Good Friday Agreement, did not have express statutory power to step into proceedings.

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Earlier this month, researchers at a federal laboratory in Colorado announced they developed a one-step process that uses solar power to convert water into hydrogen.

CNN: Bus showcases fuel cell technology