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。
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。
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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