释义 |
pore density 基本例句 孔隙率 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。 |