他们的秘诀就在于将一阵阵电流的长度缩短到纳秒，因为与缓慢转变电流相比，快速地改变电流在域壁上产生的力度要来得更大。

Their trick was to shorten the lengths of the pulses of current to about a nanosecond. Rapidly changing currents exert a greater force on domain walls than do slowly changing ones.

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但与通过熔炉缓慢加热不同，快速电加热对石墨烯看起来没有什么影响。

But rapid electrical heating did not seem to affect it in the way that slower oven heating would.

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与之相对，印度的销量缓慢上升而中国的销量则快速上升，在2007至2010年期间翻了两番，成为世界上最大的汽车市场。

In contrast, sales in India clattered along and those in China boomed, doubling between 2007 and 2010 to make it the largest auto market in the world.

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