尺度不变性可用分形和多重分形模型来表征。
Scale invariance can be described by means of fractal and multifractal models.
通过室内试验，用强度，渗透性和抗水解性来表征该材料的效果。
Through the laboratory test, with strength, permeability and resistance to characterize the hydrolysis of materials.
论文讨论了如何选取声学特征来表征不同发音者的语音个人特性。
The paper deals with the selection of acoustic phonetics of the speaker characteristics.
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