monotractor

例句：

1. 1. The monotractor is used to compact the soil for road construction.
   单轴压路机用于公路建设中压实土壤。
2. 2. The monotractor has a simple design that makes it easy to operate.
   单轴压路机的简单设计使其易于操作。
3. 3. The monotractor was designed to handle heavy loads and improve the quality of the road surface.
   单轴压路机被设计用来处理重载并提高道路表面的质量。