nummulitic limestone

例句：

1. 1.The nummulitic limestone is a type of sedimentary rock that has been formed over millions of years.
   这种沉积岩是在数百万年中形成的。
2. 2.The nummulitic limestone is used in construction for its durability and strength.
   这种沉积岩因其耐用性和强度而被用于建筑。
3. 3.The nummulitic limestone is mined from the coasts of Italy and Greece, where it is abundant.
   这种沉积岩从意大利和希腊的海岸开采，那里储量丰富。