box-type retaining wall

例句：

1. 1. The box-type retaining wall is designed to prevent soil erosion.
   这种箱型挡土墙的设计是为了防止土壤侵蚀。
2. 2. The construction of the box-type retaining wall has been completed.
   箱型挡土墙的建设已经完成。
3. 3. The box-type retaining wall is a crucial component in flood control projects.
   箱型挡土墙是防洪工程中至关重要的组成部分。