pore density

• 孔隙率

pore density的用法和样例：

例句

1. The conclusion shows the method fits and the mineral admixture can reduce the pore porosity of concrete and improve the compactibility and freezing resistance of concrete.
   结论对于混凝土冬季施工更合适未用自然变低温养护的方法，掺入适量的掺合料能使混凝土孔隙率显著降低，使混凝土更加密实，提高混凝土的抗冻性。