The beginning of crack is vertical along the orientation of maximum horizontal principal stress.
初裂缝是沿着最大水平主应力方向的垂直缝。
The measured maximum horizontal principal stress orientation in North China by different methods were compared in this paper.
本文分析、比较了由不同方法测得的华北地区最大水平主应力方向。
The maximum principal axes of the compressive stress in the five tectonic movements are nearly horizontal.
五次构造运动的最大主压应力均呈近水平方向。
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