cell martensite

例句：

1. 1.The steel was tempered to improve its strength and toughness.
   钢材经过热处理以提高其强度和韧性。
2. 2. The engineer used a special alloy to create a cell martensite structure.
   工程师使用一种特殊的合金来创造一种马氏体结构。
3. 3. The car's engine is made of high-performance martensite steel.
   这辆汽车的发动机是由高性能马氏体钢制成的。