road oilling machine

例句：

1. 1.The road oiling machine is used to maintain the smooth flow of oil on the road.
   道路加油机用于保持道路上油的流畅流动。
2. 2.The road oiling machine was installed at the beginning of the new year to prevent traffic congestion.
   道路加油机在新年伊始安装，以预防交通拥堵。
3. 3.The road oiling machine is essential for maintaining the safety and efficiency of highways.
   道路加油机对于维护高速公路的安全和效率至关重要。