big diameter welded tube

例句：

1. 1. The construction of the bridge required the use of big diameter welded tubes.
   建造桥梁需要使用大直径的焊接钢管。
2. 2. The engineer carefully selected the big diameter welded tubes for the project.
   工程师仔细挑选了这些用于项目的大直径焊接钢管。
3. 3. The big diameter welded tubes were used to reinforce the foundation of the building.
   这些大直径焊接钢管被用来加固建筑物的基础。