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"But the real question though is whether there is enough ambient noise to act as a power source as for a cell phone," said McAlpine.

“但是真正的问题是，是否存在足够强的环境噪音来充当手机的能量源，”麦艾尔·派恩说。

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Owner Christopher Lee realized the system was the answer to his prayers for finding a way to provide his customers with a power source that is accessible and also easy to find.

网吧主人Christopher Lee意识到这个系统为他提供了梦寐以求的解决方案，可为其顾客提供方便接入、容易找到的电源。

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Using non-performing rubber trees as a source of power also helps rejuvenate rubber production by making room for new planting.

VOA: standard.2009.09.13

The scheme has also attracted interest as a possible long-term power source for a manned mission to Mars.

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Dr Cui hopes in the future only a 9-volt power source will be needed.

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The feature allows a fully depleted battery to be charged to 80 percent capacity in 30 minutes using a 480-volt power source.

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