结果表明，在轴对称变形过程中，随着等效应变的增加，多晶织构显现出明显的横观各向同性及纵向各向异性。

According to the results, during of the axisymmetry deformation, longitudinal anisotropy and transversal isotropy of polycrystal were obvious with the effective strain increasing.

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在弹性、横观各向同性条件下，计算得出了表征土壤-根系复合体应力-应变关系的本构方程。

The constitutive equations of the soil-root composite, which express the stress-strain relationship, were derived under the hypothesis of isotropy.

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