prestressed reinforcement

例句：

1. 1.The beam is prestressed to resist bending under load.
   这个梁是预应力的，以抵抗负载下的弯曲。
2. 2.The steel cables are prestressed to withstand the weight of the bridge.
   这些钢缆被预应力处理，以承受桥梁的重量。
3. 3. The concrete beam is prestressed to ensure its strength and durability.
   混凝土梁被预应力处理，以确保其强度和耐久性。