In the article, a simple method is discussed to confirm the principal stress direction un-den the plane stress condition.
文章给出了一种判断平面应力状态主应力方向的简便方法。
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。
Stability method based on slip surface FE stress and shear strength reduction method are two principal methods for FEM slope stability analysis.
基于滑面上应力分析法和强度折减法是边坡稳定有限元分析方法中两类主要的方法。
On the base of loading properties of hollow cylinder apparatus, loading method to simulating the principal stress axes rotation in laboratory tests is given.
以此为基础，结合空心圆柱仪的加载特点，给出了室内模拟主应力轴旋转的加载方法。
Art teachers should regard students as the main principal part, stress on appreciating class teaching, introduce multi-teaching method, increase students' art-appreciating ability.
美术教师应重视欣赏课教学，以欣赏者为主体，采用多种教学方法，提高学生的审美能力。
Art teachers should regard students as the main principal part, stress on appreciating class teaching, introduce multi-teaching method, increase students' art-appreciating ability.
美术教师应重视欣赏课教学，以欣赏者为主体，采用多种教学方法，提高学生的审美能力。
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