concrete delivery pipe

例句：

1. 1. The construction crew used concrete delivery pipes to lay the foundation for the new building.
   建筑工人使用混凝土输送管为新大楼铺设地基。
2. 2.The engineers designed a concrete delivery pipe system that could efficiently transport large amounts of concrete.
   工程师设计了一个混凝土输送管系统，可以高效地运输大量混凝土。
3. 3.During the construction phase, it is crucial to ensure that the concrete delivery pipes are properly installed and maintained.
   在施工阶段，确保混凝土输送管正确安装和维护至关重要。