Martenaging
马氏体时效
🗣️ 情景例句
you used to be in the construction business.
你过去在建筑界工作。
Some do it for an endless pursuit of profit, and others, for the sake of the well-being of the society.
有人做生意是为了无止境的追求利润，有的人是为了社会的繁荣。
Hello. 8906214.
喂，这是890621。