porotic

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

气凝胶是一类具有许多独特物理、化学性轻多孔材料，在众多领域中具有应或潜在应价值。

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

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