membrane barrier

• 隔膜

membrane barrier的用法和样例：

例句

1. Typically the vacuum is generated by a water aspirator or a membrane pump.
   真空由水抽子或隔膜泵产生。
2. The membrane is impermeable to blood cells and large molecules such as proteins, but small ones can get through it.
   血液分子和一些大分子例如，蛋白质，是无法渗透隔膜的，而小分子仍然可以通过。