prestressing bed

例句：

1. 1.The prestressed concrete bed is being installed in the construction site.
   在施工现场安装预应力混凝土床。
2. 2. The prestressed steel bed is a crucial component of the bridge's structure.
   预应力钢床是桥梁结构的关键组成部分。
3. 3. The prestressed bed is designed to withstand heavy loads and improve the structural integrity of the building.
   预应力床设计用于承受重载并提高建筑物的结构完整性。