longitudinal mechanical tension

例句：

1. 1.The steel beam is under longitudinal mechanical tension due to the weight of the building.
   由于建筑物的重量，钢梁处于纵向力学张力状态。
2. 2. During the construction process, it's important to consider the longitudinal mechanical tension in the structure.
   在施工过程中，考虑结构中的纵向力学张力是很重要的。
3. 3. The engineer used finite element analysis to determine the longitudinal mechanical tension in the beam.
   工程师使用有限元分析来确定梁中的纵向力学张力。