shotcrete ceiling

例句：

1. 1. The architect designed a shotcrete ceiling for the new office building.
   建筑师为新办公楼设计了一个混凝土天花板。
2. 2.The engineer recommended using shotcrete as an alternative to traditional plaster ceilings.
   工程师推荐使用混凝土作为传统抹灰天花板的替代品。
3. 3. The construction workers were installing shotcrete ceilings in the basement.
   建筑工人正在地下室安装混凝土天花板。