film potential的用法和樣例：
例句
- Voltage-gated potassium channels regulate cell membrane potential and excitability in neurons.
電壓門(mén)控性鉀通道維持神經(jīng)元靜息膜電位，參與細胞興奮性的改變。 - During the course of the upstroke, the membrane potential attains zero, and an electrical gradient no longer exists.
在升支發(fā)展過(guò)程中，膜電位一達到零，電位梯度即不再存在。
