mullite block

例句：

1. 1.The engineer used a mullite block to make the bricks.
   工程师用一个莫来石砖制作砖块。
2. 2. This mullite block is perfect for making small sculptures.
   这个莫来石砖非常适合制作小型雕塑。
3. 3.The mullite block was so strong that it could hold up the weight of a car.
   这个莫来石砖非常坚固，足以支撑一辆汽车的重量。