topterone

例句：

1. 1.The topterone was used to stabilize the roof during construction.
   顶托剂被用来在建造过程中稳定屋顶。
2. 2.Topterone is a material that can be used to reinforce concrete structures.
   顶托剂是一种可以用来加固混凝土结构的材料。
3. 3.The engineers used topterone to create a stronger and more durable foundation for the building.
   工程师们使用顶托剂为建筑创造了一个更坚固、更耐用的基础。