bentonite bonded sand

例句：

1. 1. Bentonite is used in the construction of roads and bridges.
   膨润土用于道路和桥梁的建设。
2. 2.The bentonite clay was used to make bricks and tiles.
   膨润土被用来制作砖块和瓷砖。
3. 3.Bentonite is a natural mineral that can be found in many soils.
   膨润土是一种天然矿物，可以在许多土壤中找到。