名詞 cementite:

1. the iron carbide constituent of steel and cast iron; very hard and brittle
   同義詞：iron carbide

ce.ment.ite

n.（名詞）
A hard, brittle iron carbide, Fe3C, found in steel with more than 0.85 percent carbon.
碳化鐵：一種硬而脆的鐵的碳化物，F(xiàn)e3C，發(fā)現(xiàn)于含超過0.85%碳的鐵中

來源：
From cement
源自 cement