A fractal dimension study showed that the variation in pore size in the gradient scaffold was smooth without any obvious interface.
对材料进行分形研究，表明梯度多孔支架内部无明显界面，孔径过渡平缓。
A fractal dimension study showed that the variation in pore size in the gradient scaffold was smooth without any obvious interface.
对材料进行分形研究，表明梯度多孔支架内部无明显界面，孔径过渡平缓。
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