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、化学性质的轻质多孔,
众多的领域中具有应
或潜
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多独特物理、化学性质的轻质多孔,
众多的领域中具有应
或潜
的应
价值。
Results The columnar trabeculae of the femoral heads in the aged people showed porotic, manifesting thinning, tapering and perforation.
结果老年组股骨头骨小梁稀疏、、
孔,股骨颈皮质
薄,哈氏管扩大,骨胶原纤维排列紊乱并出现腔隙。
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