capillary surface

例句：

1. 1. The microscope is used to observe the capillary surface of a droplet of water.
   显微镜被用来观察水滴的毛细管表面。
2. 2.The scientist discovered that the capillary surface plays a crucial role in the process of diffusion.
   科学家发现，毛细管表面在扩散过程中起着至关重要的作用。
3. 3. In microbiology, the capillary surface is an important area for studying the interactions between bacteria and their environment.
   在微生物学中，毛细管表面是研究细菌与其环境相互作用的重要领域。