precast floor segment

例句：

1. 1. The constructioncompany used precast floor segmentsto quickly build the new office building.
   这家建筑公司使用预制地板段快速建造了新的办公楼。
2. 2. The engineer designed a specialprecast floor segment that could withstandheavy loads.
   工程师设计了一种特殊的预制地板段，能够承受重载。
3. 3. The precastfloor segment was installed in the basement ofthe new residential complex, providing a durableand energy-efficient surface.
   预制地板段被安装在新住宅小区的地下室中，提供了耐用且节能的表面。