sand spreading machine

例句：

1. 1. The sand spreading machine is used to level the ground before construction.
   沙石铺平机用于施工前平整地面。
2. 2.The sand spreading machine was a critical tool in the construction of highways during the early 20th century.
   沙石铺平机是20世纪初高速公路建设的关键工具。
3. 3. The sand spreading machine has become an essential part of modern landscaping.
   沙石铺平机已成为现代园林建设不可或缺的一部分。