principal stress

• 主应力

principal stress的用法和样例：

例句

1. To answer this question, we need to plot trajectories of principal stresses.
   为了回答这个问题，我们尚须画出主应力迹线图。
2. The calculation principle of earth pressure using principal stress arching is proposed.
   给出了用主应力拱应力分析计算土压力的基本原理。