membrane electrophoresis

例句：

1. 1. Membrane electrophoresis is a technique used to separate proteins based on their size and charge.
   膜电泳是一种基于蛋白质大小和电荷分离的技术。
2. 2. In membrane electrophoresis, the separation of molecules is driven by an electric field.
   在膜电泳中，分子的分离是由电场驱动的。
3. 3. The use of membrane electrophoresis in drug discovery has greatly improved the efficiency of protein purification.
   在药物发现中使用膜电泳大大提高了蛋白质纯化的效率。