plane stress

例句：

1. 1. The engineer calculated the plane stress in the structure.
   工程师计算了结构中的平面应力。
2. 2. The plane stress analysis is crucial for understanding the behavior of materials under load.
   平面应力分析对于理解材料在载荷下的行为至关重要。
3. 3. During the construction phase, it's important to consider the plane stress conditions.
   在施工阶段，考虑平面应力条件是很重要的。