cementite

名词 cementite:

1. the iron carbide constituent of steel and cast iron; very hard and brittle
   同义词：iron carbide

ce.ment.ite

n.（名词）
A hard, brittle iron carbide, Fe3C, found in steel with more than 0.85 percent carbon.
碳化铁：一种硬而脆的铁的碳化物，Fe3C，发现于含超过0.85%碳的铁中

来源：
From cement
源自 cement