The general form of the third-order nonlinear elastic coefficient tensor having the symmetry of the group so (2) was derived with the help of group theoretical methods.

用群论方法导出具有轴转动群so(2)对称性的三阶非线性弹性系数张量的一般形式。

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For example saturation density, bulk binding energy, symmetry energy coefficient, incompressibility, and the ratio of effective nucleon mass to free nucleon mass at the saturation density.

比如饱和密度，结合能，不可压缩模量，对称能系数，以及饱和密度时的核子有效质量与核子自由质量的比值。

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For example saturation density, bulk binding energy, symmetry energy coefficient, incompressibility, and the ratio of effective nucleon mass to free nucleon mass at the saturation density.

比如饱和密度，结合能，不可压缩模量，对称能系数，以及饱和密度时的核子有效质量与核子自由质量的比值。

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