快速思考和反应也依赖胆固醇,因为这些蜡状分子构成的鞘使神经元绝缘和加速电传递。
Quick thinking and rapid reaction times depend on cholesterol, too, because the waxy molecules are the building blocks of the sheaths that insulate neurons and speed up electrical transmissions.
风力发电的成本过去十年来已经大幅度下降了,如果我们能在五年内使太阳能发电的成本加速下降的话,我们就会产生重大的影响。
The cost of wind has declined dramatically in the last decade, and if in five years we can accelerate the cost reduction of solar power, we will have made a huge impact.
越来越多的证据显示,全球暖化已经使水文循环加速,换言之,降雨、落雪、再蒸发的速度越来越快。
There is growing evidence that global warming is speeding up the hydrologic cycle-that is, the rate at which water evaporates and falls again as rain or snow.
But the acceleration it produces on the elephant and on the mass, are in an inverse ratio of their masses.
但这个力使大象和物体产生的加速度,与它们的质量成反比
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