free pore space

例句：

1. 1.The engineer designed the new building to maximize its free pore space for better air circulation.
   工程师设计新建筑以最大化其自由孔隙空间，以便更好的空气流通。
2. 2.In the study of materials science, understanding the free pore space is crucial for designing more efficient filters.
   在材料科学研究中，理解自由孔隙空间对于设计更高效的过滤器至关重要。
3. 3. The researchers found that by adjusting the structure of the material, they could increase the free pore spacewithout significantly reducing strength.
   研究人员发现，通过调整材料的结构，他们可以在不显著降低强度的情况下增加自由孔隙空间。