gel porosity的用法和樣例：
例句
- The influence of porosity in oil bearing material on oil extraction is described.
本文主要描述了物料的多孔性對油脂制取的影響。 - The ideal material would mimic the porosity of biological cells to allow air in, while selectively filtering out hazardous pathogens.
理想的材料應該是摹仿生物細胞的多孔性，使空氣能吸入，并選擇性地濾出有危險性的病原菌。
