astronomical meridian plane [测] 天文子午面
geodetic meridian plane 大地子午面
prime meridian plane 本初子午面
Greenwich meridian plane 格林威治子午线平面
zero meridian plane 零度经线平面
Equivalent Meridian Plane 当量子午面
noon-midnight meridian plane [天] 正午子夜子午面
dawn-and-dusk meridian plane [天] 晨昏子午面
true meridian plane 直子午面
Moreover,aiming at multi-strength theory only have qualitative analysis in meridian plane or plane,direct comparison in-plane is presented. The results indicates that multi-shear strength criterion is of good applicability and high promotional value.
另针对多数强度准则只在子午面或π平面作定性分析的情况,特别增加了σ1-σ2平面上的直接比较,结果表明,该强度准则具有非常好的适用性及推广价值。
参考来源 - 基于粒子群算法的多剪强度准则研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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