concrete box culvert

例句：

1. 1. The construction of the concrete boxculvert is crucial for flood control.
   混凝土箱式涵洞的建设对于防洪至关重要。
2. 2.The engineers carefully designed the concrete boxculvert to ensure its stability.
   工程师们仔细设计了混凝土箱式涵洞，以确保其稳定性。
3. 3. The concretebox culvert wasconstructed in a remote area,providing essential access during emergencies.
   混凝土箱式涵洞在偏远地区建造，为紧急情况下提供了必要的通道。