piling beam

例句：

1. 1. The engineer used a piled beam to support the roof.
   工程师使用一个堆叠的梁来支撑屋顶。
2. 2.The construction crew was using piled beams to reinforce the foundation.
   建筑工人们正在使用堆叠的梁来加固地基。
3. 3.The beams were carefully piled to ensure stability during the construction process.
   这些梁被小心地堆叠起来，以确保施工过程中的稳定性。