deflection differences of longitudinal beams

• 纵梁挠度差

deflection differences of longitudinal beams的用法和样例：

例句

1. The deflection of the longitudinal beams of the aqueducts which span the rivers in Hebei Province is calculated under different condition.
   通过对河北省典型跨河渡槽纵梁不同运行工况的挠度计算，将纵梁间挠度差作为横向计算的初始变位，计算此变位对横向内力的影响。