the upper structure

• 上部结构

the upper structure的用法和样例：

例句

1. A special steel spreader beam was used to erect the fabricated cage in its proper position in the roadway structure.
   使用一个特制的钢托架来安装预制的锚固横梁的钢筋骨架，使其就位于上部结构内预定的位置上。
2. The results show that the energy response has an important effect on the slipping isolator efficiency of the vibration characteristics of the structure.
   结果表明，滑移隔震对于上部结构振动响应的隔震效果受能量方面的机理控制。