road packer

例句：

1. 1.The road packer was used to compact the dirt on the road.
   道路填埋机被用来压实路面上的泥土。
2. 2.The road packer is essential for maintaining the smooth flow of traffic.
   道路填埋机对于保持交通流畅至关重要。
3. 3. The road packer was used to level the road surface and improve drainage.
   道路填埋机被用来平整路面和改善排水。