A valid method to make the anisotropic deformation behavior of load bearing unit clear is to research principal stress and principal strain relationship, and true triaxial test is a necessary means.

弄清受荷单元的主应力主应变关系是认识各向异性变形性状的有效方法，而真三轴试验是必要的手段。

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In this paper, we describe the method and steps of tents, and the way to transform the curves rec rded automatically by the X-Y Function Recorder into the true stress-true strain curves.

本文阐述了试验的方法与步骤和将X—Y函数仪自动记录的曲线转换成实际应力曲线的方法。

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