membrane potential

例句：

1. 1. The cellmembrane is the first barrier that separates the inside of the cell from the outside environment.
   细胞膜是分隔细胞内部与外部环境的第一道屏障。
2. 2. The study of membrane potential has led to important discoveries in neuroscience and pharmacology.
   研究膜电位在神经科学和药理学领域取得了重要的发现。
3. 3. The electrical potential difference across the membrane can be measured using a voltmeter.
   通过使用万用表可以测量膜两侧的电势差。