special in carbide tipped

例句：

1. 1.The steel was made from the carbonized remnants of the old iron ore.
   这种钢是用旧铁矿石的碳化残留物制成的。
2. 2. Carbon is a very important element in the human body.
   碳是人体中非常重要的元素。
3. 3. The carbide tipped tools are used for cutting and shaping metals.
   碳化钨尖的工具用于切割和成型金属。