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物理、化学性质的轻质
孔材料,在众
的领域中具有应
或潜在的应
价值。
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物理、化学性质的轻质
孔材料,在众
的领域中具有应
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.
结果老年组股头
小梁稀疏、变细、穿孔,股
颈皮质变薄,哈氏管
,
胶原纤维排列紊乱并出现腔隙。
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