walking beam

例句：

1. 1. The engineer designed the bridge to be able to support heavy loads without breaking.
   工程师设计了这座桥，以便在承受重载时不会断裂。
2. 2.The beam was used as a temporary support during the construction of the bridge.
   在建造桥梁的过程中，这个梁被用作临时支撑。
3. 3. The beam is crucial for the stability of the bridge, as it helps distribute the weight evenly.
   这个梁对于桥梁的稳定性至关重要，因为它有助于均匀分布重量。