trench filler

例句：

1. 1. The engineers used a special trench filler to repair the damaged area.
   工程师们使用了一种特殊的壕沟填充物来修复受损区域。
2. 2.Trench fillers are commonly used in construction projects to stabilize soil and prevent erosion.
   在建筑项目中，常使用壕沟填充物来稳定土壤并防止侵蚀。
3. 3.The trench filler was carefully placed to ensure it would not shift during excavation.
   壕沟填充物被小心放置，以确保在挖掘过程中不会移位。