There are two main methods to describe the general state of stress at a point in Continuum Mechanics-Qudric Surface method and Ellipsoid method.

连续介质力学中关于一点应力状态的描述有多种方法：如二次曲面法和应力椭球法。

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Integral equation method and photoelastic experiment are used for the stress analysis of an axial compressive ellipsoid.

用积分方程法和光弹性方法分析受轴向集中压力的椭球体。

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The strain state of the emplaced magma is shown by ellipsoid parameters, and distribution of stress field of the magma reflects the ways of emplacement and tectonic environment.

从磁化率椭球参数可以看出岩浆侵位的应变状态； 岩浆应力场分布体现了岩浆侵位方式及其所处构造环境。

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