trough washery

例句：

1. 1. The trough washery is used to clean the road surface.
   漏斗形洗石机用于清洗道路表面。
2. 2.The trough washery is essential for maintaining the road quality.
   漏斗形洗石机对于保持道路质量至关重要。
3. 3. The trough washery is designed to remove large stones and gravel from the road.
   漏斗形洗石机设计用来从道路上去除大石头和砾石。