Marstressing
马氏体应力; 马氏体应力淬火
🗣️ 情景例句
Don't worry about it. It's nothing.
别担心，没事儿。
He has come to be recognized as an expert in the problem of overpopulation and food supply.
由于他的经验促使他终于成为了公认的人口过剩和食物供应问题的专家。
Don't worry. I'm OK.
别担心。我没事。