网孔

例句：

1. 1. The net has many small meshes to catch insects.
   这个网有很多小网眼来捕捉昆虫。
2. 2. The scientist used a microscope to examine the tiny apertures in the sample.
   科学家用显微镜检查样本中的微小孔洞。
3. 3. The engineer designed a system with multiple meshes to filter out pollutants.
   工程师设计了一个系统，具有多个网眼来过滤污染物。