cast-weld construction

例句：

1. 1. The cast-welded steel beam is strong enough to support the weight of the roof.
   焊接的钢梁足够坚固，可以支撑屋顶的重量。
2. 2. The cast-welded structure is designed to withstand extreme weather conditions.
   焊接结构设计用于承受极端天气条件。
3. 3.In this project, we used a cast-welded construction method to ensure durability and strength.
   在这个项目中，我们采用了焊接构造方法以确保耐用性和强度。