As we increase the voltage, we get to a critical value at which it is possible to actually draw electrons across the gap.

当我们增加气压时，我们得到了一个临界值，在这个临界值上,将电子吸引过来是完全有可能的。

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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

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