rail tensor

例句：

1. 1.The engineer used a rail tensor to calculate the stress distribution in the bridge.
   工程师使用铁轨张量来计算桥梁上的应力分布。
2. 2. The train's weight was calculated using a rail tensor, which is a mathematical tool for analyzing forces on structures.
   火车的重量是通过铁轨张量计算得出的，这是一种用于分析结构上力的数学工具。
3. 3. The rail tensor was used to predict the behavior of the train under different conditions.
   通过铁轨张量预测了火车在不同条件下的行为。