superstructure line

例句：

1. 1.The superstructure line is a crucial part of the building's structural integrity.
   超结构线是建筑结构完整性的关键部分。
2. 2.The engineer used the superstructure line to reinforce the beam.
   工程师使用超结构线来加固梁。
3. 3.The construction team was tasked with installing the superstructure line in the new building.
   施工团队被分配在新建的建筑物中安装超结构线。