So it goes back many hundreds of years but it's in rapid change now because of information technology.

因此经纪业已经有好几百年的历史,如今借助信息科技的发展,而迅速得到发展

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That results in a dramatic change in the membrane voltage; the potential across the membrane and that's shown here by this rapid rise in membrane potential.

变化导致了膜电压的剧烈变化,膜电压就是跨膜的电势差,表现为膜电位的迅速上升

耶鲁公开课 - 生物医学工程探索课程节选