porotic

Aerogel is a kind of low density porotic material which has many special physical and chemical properties.

气凝胶是一类有许多独特物理、化学性质的轻质多孔材料，在众多的领有应或潜在的应价值。

Results The columnar trabeculae of the femoral heads in the aged people showed porotic, manifesting thinning, tapering and perforation.

结果老年组股小梁稀疏、变细、穿孔,股颈皮质变薄,哈氏管扩大,胶原纤维排列紊乱并出现腔隙。