road grader

例句：

1. 1. The road grader is used to level the road surface before it's paved.
   道路施工机械用于铺设前平整道路表面。
2. 2.The construction workers use a road grader to clear away the debris from the construction site.
   建筑工人使用道路施工机械清除施工现场的碎石。
3. 3. The heavy equipment was operated by a skilled crew of road graders.
   重型设备由熟练的操作团队驾驶。