tamped concrete

例句：

1. 1. The engineer used a tamping machine to compact the concrete before pouring it.
   工程师使用捣实机在浇筑混凝土之前将其压实。
2. 2. The construction crew had to use a special tool to ensure the concrete was properly tamped.
   施工队不得不使用特殊的工具来确保混凝土被正确捣实。
3. 3. The foundation of the building is made from high-quality tamped concrete.
   这座建筑的地基是由高质量的捣实混凝土制成的。