pore canal

例句：

1. 1. The scientist discovered the pore canal in the rock.
   科学家在岩石中发现了毛孔通道。
2. 2. The doctor advised him to clean the pore canal regularly.
   医生建议他定期清洁毛孔通道。
3. 3. The researcher found that the pore canal was filled with bacteria.
   研究者发现毛孔通道里充满了细菌。