concrete pump

例句：

1. 1. The concrete pump was used topump the concrete into the construction site.
   混凝土泵被用来将混凝土泵入施工现场。
2. 2. Theconcrete pump is essential for pouring concretein large construction projects.
   混凝土泵对于大型建筑项目浇筑混凝土至关重要。
3. 3. The concretepump was damaged during theconstruction process, causing delays inthe project.
   在施工过程中，混凝土泵受损，导致工程进度延误。