carborundum saw

例句：

1. 1.The diamond cutting tool is made from carborundum.
   这种钻石切割工具是由碳化硅制成的。
2. 2.He used a carborundum saw to cut through the concrete.
   他用碳化硅锯锯开了混凝土。
3. 3.The engineer used a carborundum saw to remove the old paint from the walls.
   工程师用碳化硅锯把墙上的旧油漆刮掉了。